1# Configuration Guide
2
3**Location**: `~/.config/dumber/config.toml`
4**Formats**: TOML (recommended), JSON, YAML
5
6## Database
7
8| Key | Type | Default | Description |
9|-----|------|---------|-------------|
10| `database.path` | string | `~/.local/share/dumber/dumber.db` | Database file path |
11
12## History
13
14| Key | Type | Default | Valid Values | Description |
15|-----|------|---------|--------------|-------------|
16| `history.max_entries` | int | `10000` | > 0 | Maximum number of history entries |
17| `history.retention_period_days` | int | `365` | > 0 | Days to keep history (1 year) |
18| `history.cleanup_interval_days` | int | `1` | > 0 | How often to run cleanup |
19
20## Search Configuration
21
22| Key | Type | Default | Description |
23|-----|------|---------|-------------|
24| `default_search_engine` | string | `"https://duckduckgo.com/?q=%s"` | Default search engine URL template (must contain `%s` placeholder) |
25| `search_shortcuts` | map | See defaults | Map of shortcut aliases to URLs |
26
27**Example:**
28```toml
29# Default search engine - used when no shortcut is specified
30default_search_engine = "https://duckduckgo.com/?q=%s"
31
32# Alternative search engines:
33# default_search_engine = "https://www.google.com/search?q=%s"
34# default_search_engine = "https://www.startpage.com/search?q=%s"
35# default_search_engine = "https://search.brave.com/search?q=%s"
36```
37
38**Default shortcuts (usage: `!shortcut query`):**
39```toml
40# Examples:
41#   !ddg golang      → DuckDuckGo search for "golang"
42#   !g rust tutorial → Google search for "rust tutorial"
43#   !gi cats         → Google Images search for "cats"
44#   !gh opencode     → GitHub search for "opencode"
45#   !yt music video  → YouTube search for "music video"
46
47[search_shortcuts.ddg]
48url = "https://duckduckgo.com/?q=%s"
49description = "DuckDuckGo search"
50
51[search_shortcuts.g]
52url = "https://google.com/search?q=%s"
53description = "Google Search"
54
55[search_shortcuts.gi]
56url = "https://google.com/search?tbm=isch&q=%s"
57description = "Google Images"
58
59[search_shortcuts.gh]
60url = "https://github.com/search?q=%s"
61description = "GitHub"
62
63[search_shortcuts.yt]
64url = "https://youtube.com/results?search_query=%s"
65description = "YouTube"
66```
67
68## Dmenu / Launcher
69
70These settings control the `dumber dmenu` CLI command for rofi/fuzzel integration.
71
72| Key | Type | Default | Description |
73|-----|------|---------|-------------|
74| `dmenu.max_history_days` | int | `30` | Number of days of history to show (0 = all) |
75| `dmenu.show_visit_count` | bool | `true` | Show visit counts in output |
76| `dmenu.show_last_visited` | bool | `true` | Show last visited dates in output |
77| `dmenu.history_prefix` | string | `"🕒"` | Prefix for history items |
78| `dmenu.shortcut_prefix` | string | `"🔍"` | Prefix for shortcuts |
79| `dmenu.url_prefix` | string | `"🌐"` | Prefix for URLs |
80| `dmenu.date_format` | string | `"2006-01-02 15:04"` | Go time format string |
81| `dmenu.sort_by_visit_count` | bool | `true` | Sort by visit count instead of recency |
82
83**CLI Usage:**
84```bash
85# Pipe mode (default) - outputs history for rofi/fuzzel with favicons
86dumber dmenu | rofi -dmenu -show-icons -p "Browse: " | dumber dmenu --select
87dumber dmenu | fuzzel --dmenu -p "Browse: " | dumber dmenu --select
88
89# Interactive TUI mode
90dumber dmenu --interactive
91
92# Override history days via CLI flag (show last 7 days)
93dumber dmenu --days 7
94
95# Sort by most visited instead of recency
96dumber dmenu --most-visited
97
98# Combined: most visited from last 14 days
99dumber dmenu --days 14 --most-visited
100```
101
102## Omnibox
103
104| Key | Type | Default | Valid Values | Description |
105|-----|------|---------|--------------|-------------|
106| `omnibox.style` | string | `"command"` | `multiplexer`, `command`, `minimal` | Omnibox visual treatment |
107| `omnibox.initial_behavior` | string | `"recent"` | `recent`, `most_visited`, `none` | Initial history display behavior; press `Ctrl+R` in the omnibox to switch |
108| `omnibox.max_history_days` | int | `30` | `>= 0` | Days of history used by omnibox suggestions, for both typed searches and the empty-input list (`0` = all history) |
109| `omnibox.auto_open_on_new_pane` | bool | `false` | - | Automatically open the omnibox after creating a new pane |
110
111Changing `omnibox.style` takes effect after restarting Dumber.
112
113**Example:**
114```toml
115[omnibox]
116style = "command"            # Soft terminal-inspired command palette
117initial_behavior = "recent"  # Show recent history when omnibox opens
118max_history_days = 30         # History window for omnibox searches and initial list
119auto_open_on_new_pane = false
120
121# Alternative visual treatments:
122# style = "multiplexer"  # Segmented terminal multiplexer treatment
123# style = "minimal"      # Bare terminal typography and hairlines
124
125# Alternative options:
126# initial_behavior = "most_visited"  # Show most visited sites
127# initial_behavior = "none"          # Show no initial suggestions
128```
129
130> **Note:** `omnibox.max_history_days` is non-destructive: it never deletes history, it only limits which entries omnibox suggestions consider. `most_visited` ranks by lifetime visit counts among URLs whose `last_visited` falls inside the window.
131>
132> This key replaced `omnibox.most_visited_days`. Run `dumber config migrate` to rename the legacy key while preserving its value. The derived environment variable is `DUMBER_OMNIBOX_MAX_HISTORY_DAYS`; the old `DUMBER_OMNIBOX_MOST_VISITED_DAYS` is no longer read.
133
134## Logging
135
136| Key | Type | Default | Valid Values | Description |
137|-----|------|---------|--------------|-------------|
138| `logging.level` | string | `"info"` | `trace`, `debug`, `info`, `warn`, `error`, `fatal` | Log level |
139| `logging.format` | string | `"text"` | `text`, `json`, `console` | Log format |
140| `logging.max_age` | int | `7` | `>= 0` | Days to keep logs |
141| `logging.max_files` | int | `100` | `>= 0` | Session log files to keep (`0` disables count cleanup) |
142| `logging.log_dir` | string | `~/.local/state/dumber/logs` | any path | Log directory |
143| `logging.enable_file_log` | bool | `true` | - | Enable file logging |
144| `logging.capture_console` | bool | `false` | - | Capture browser console to logs |
145| `logging.capture_gtk_logs` | bool | `false` | - | Capture GTK and WebKit logs for debugging. |
146
147## Appearance
148
149| Key | Type | Default | Description |
150|-----|------|---------|-------------|
151| `appearance.sans_font` | string | `"Fira Sans"` | Sans-serif font |
152| `appearance.serif_font` | string | `"Fira Sans"` | Serif font |
153| `appearance.monospace_font` | string | `"Fira Code"` | Monospace font |
154| `appearance.default_font_size` | int | `16` | Font size in points |
155| `appearance.color_scheme` | string | `"default"` | `prefer-dark`, `prefer-light`, `default` |
156| `appearance.external_theme.enabled` | bool | `false` | Enable an external palette source |
157| `appearance.external_theme.provider` | string | `"noctalia"` | External provider. Only `noctalia` is supported |
158| `appearance.external_theme.format` | string | `"colors-json"` | External file format: `colors-json` or `dumber-json` |
159| `appearance.external_theme.path` | string | `$XDG_CONFIG_HOME/noctalia/colors.json` for `colors-json`; built-in dumber-json template path for `dumber-json` | Path to the external theme JSON file |
160
161### Color Palettes
162
163**Light palette:**
164
165```toml
166[appearance.light_palette]
167background = "#fafafa"
168surface = "#f4f4f5"
169surface_variant = "#e4e4e7"
170text = "#18181b"
171muted = "#71717a"
172accent = "#22c55e"
173border = "#d4d4d8"
174```
175
176**Dark palette:**
177
178```toml
179[appearance.dark_palette]
180background = "#0a0a0b"
181surface = "#18181b"
182surface_variant = "#27272a"
183text = "#fafafa"
184muted = "#a1a1aa"
185accent = "#4ade80"
186border = "#3f3f46"
187```
188
189### External Theme: Noctalia
190
191Dumber can integrate with Noctalia by reading the native Noctalia palette file directly. No user template is required for the default integration.
192
193```toml
194[appearance.external_theme]
195enabled = true
196provider = "noctalia"
197format = "colors-json" # default
198# Optional. Defaults to $XDG_CONFIG_HOME/noctalia/colors.json.
199path = "~/.config/noctalia/colors.json"
200```
201
202The external file overrides palette colors only. Fonts, UI scale, pane-mode colors, and other appearance settings still come from Dumber config.
203
204#### `colors-json` contract
205
206`colors-json` reads Noctalia's active `colors.json` palette. Example file: [`docs/examples/noctalia-colors.json`](../examples/noctalia-colors.json).
207
208Dumber maps Noctalia roles like this:
209
210| Noctalia key | Dumber palette field |
211|--------------|----------------------|
212| `mShadow` | `background` when present, otherwise `mSurface` |
213| `mSurface` | `surface` |
214| `mHover` | `surface_variant` when present, otherwise `mSurfaceVariant` |
215| `mOnSurface` | `text` |
216| `mOnSurfaceVariant` | `muted` |
217| `mPrimary` | `accent` |
218| `mOutline` | `border` |
219
220Every mapped value must be a CSS-safe 6-digit hex color such as `#aabbcc`.
221
222`mShadow` and `mHover` are optional nuance roles. When present, they are validated and used to preserve Dumber's background/surface/input contrast.
223
224Because Noctalia's native file contains the active palette only, Dumber applies that mapped palette to both resolved light and dark palettes so the app follows the file immediately.
225
226#### Advanced: `dumber-json` user template
227
228`dumber-json` remains supported for an explicit Dumber-specific Noctalia user template:
229
230```toml
231[appearance.external_theme]
232enabled = true
233provider = "noctalia"
234format = "dumber-json"
235# Optional for dumber-json. Defaults to $XDG_CONFIG_HOME/dumber/noctalia-theme.json.
236path = "~/.config/dumber/noctalia-theme.json"
237```
238
239The file must be JSON with root `light` and `dark` objects. Optional `source`, `name`, and `mode` metadata fields are accepted; `name` or `source` is used only as source metadata. Dumber chooses the active palette from `appearance.color_scheme` and the system color-scheme preference.
240
241Supported palette fields are:
242
243- `background`
244- `surface`
245- `surface_variant`
246- `text`
247- `muted`
248- `accent`
249- `border`
250
251Each non-empty palette value must be a CSS-safe 6-digit hex color such as `#AABBCC`. Empty or omitted palette fields inherit from the configured Dumber palette for that mode.
252
253Example rendered file: [`docs/examples/noctalia-dumber-theme.json`](../examples/noctalia-dumber-theme.json). Example template: [`docs/examples/noctalia-dumber-theme.template.json`](../examples/noctalia-dumber-theme.template.json).
254
255When Noctalia rewrites the watched file, Dumber reapplies the same resolved theme path used by config reloads. A malformed or temporarily missing file keeps the last valid external palette when one exists; disabling `appearance.external_theme.enabled` clears that last-good external palette and returns to Dumber's configured palettes.
256
257## Debug Options
258
259| Key | Type | Default | Description |
260|-----|------|---------|-------------|
261| `debug.enable_devtools` | bool | `true` | Enable browser developer tools (F12, Inspect Element) |
262| `engine.cef.log_file` | string | `""` | CEF runtime log path |
263| `engine.cef.log_severity` | int32 | `0` | CEF log severity (`0`, `1`, `2`, `3`, `4`, `99`) |
264| `engine.cef.trace_handlers` | bool | `false` | Log CEF handler dispatch details |
265| `engine.cef.enable_audio_handler` | bool | `true` | Enable the experimental CEF audio handler |
266
267## Privacy
268
269| Key | Type | Default | Valid Values | Description |
270|-----|------|---------|--------------|-------------|
271| `engine.cookie_policy` | string | `"always"` | `always`, `no_third_party`, `never` | Cookie acceptance policy |
272| `engine.webkit.itp_enabled` | bool | `true` | - | Enable WebKit fallback Intelligent Tracking Prevention |
273
274
275## Rendering, UI Scale & Zoom
276
277CEF is the default browser engine. WebKitGTK remains available as a fallback via `engine.type = "webkit"`; `engine.webkit.*` settings only affect that fallback engine.
278
279| Key | Type | Default | Valid Values | Description |
280|-----|------|---------|--------------|-------------|
281| `engine.type` | string | `"cef"` | `cef`, `webkit` | Browser engine selection; WebKitGTK is the fallback option |
282| `engine.cef.render_stack` | string | `"vulkan"` | `vulkan`, `egl` | CEF GPU render stack |
283| `engine.cef.adaptive_windowless_frame_rate` | bool | `true` | - | Enable adaptive CEF OSR FPS polling when `windowless_frame_rate = 0` |
284| `engine.cef.windowless_frame_rate` | int32 | `0` | `>= 0` | Explicit CEF OSR FPS cap; 0 uses adaptive mode if enabled |
285| `engine.cef.windowless_frame_rate_max` | int32 | `240` | `>= 0` | Hard cap for adaptive CEF OSR FPS; 0 uses the built-in cap |
286| `engine.cef.input.scroll_wheel_multiplier` | float | `1.0` | `> 0` | Mouse wheel scroll sensitivity multiplier |
287| `engine.cef.input.scroll_precise_multiplier` | float | `2.5` | `> 0` | Precise/surface scroll sensitivity multiplier for touchpads and high-resolution wheels |
288| `engine.cef.input.scroll_horizontal_multiplier` | float | `1.0` | `> 0` | Horizontal scroll sensitivity multiplier |
289| `engine.cef.input.scroll_vertical_multiplier` | float | `1.0` | `> 0` | Vertical scroll sensitivity multiplier; combines with `scroll_precise_multiplier` for touchpads |
290| `engine.cef.input.scroll_max_delta` | int32 | `0` | `>= 0` | Maximum absolute scroll delta after scaling; 0 disables clamping |
291| `engine.cef.input.scroll_touchpad_inertia` | bool | `true` | - | Direct touchpad tracking with exponential release decay |
292| `engine.cef.input.scroll_wheel_smoothing` | bool | `true` | - | Interpolate accepted wheel impulses across frames without a long coast |
293| `engine.cef.input.touchpad_navigation_enabled` | bool | `true` | - | Enable two-finger touchpad swipe back/forward navigation |
294| `engine.cef.input.touchpad_navigation_min_delta` | float | `320.0` | `> 0` | Minimum accumulated horizontal swipe delta required for navigation |
295| `engine.cef.input.touchpad_navigation_max_vertical_ratio` | float | `0.5` | `> 0` | Maximum vertical-to-horizontal delta ratio allowed for navigation swipes |
296| `engine.webkit.gsk_renderer` | string | `"auto"` | `auto`, `opengl`, `vulkan`, `cairo` | WebKit fallback GTK renderer selection (`GSK_RENDERER`) |
297| `engine.webkit.disable_dmabuf_renderer` | bool | `false` | - | Disable WebKit fallback DMA-BUF renderer |
298| `engine.webkit.force_compositing_mode` | bool | `false` | - | Force WebKit fallback compositing mode (`WEBKIT_FORCE_COMPOSITING_MODE`) |
299| `engine.webkit.disable_compositing_mode` | bool | `false` | - | Disable WebKit fallback compositing mode (`WEBKIT_DISABLE_COMPOSITING_MODE`) |
300| `engine.webkit.disable_mipmaps` | bool | `false` | - | Disable GTK mipmaps for the WebKit fallback (`GSK_GPU_DISABLE=mipmap`) |
301| `engine.webkit.prefer_gl` | bool | `false` | - | Prefer OpenGL over GLES for the WebKit fallback (`GDK_DEBUG=gl-prefer-gl`) |
302| `engine.webkit.draw_compositing_indicators` | bool | `false` | - | Draw WebKit fallback compositing indicators (debug) |
303| `engine.webkit.show_fps` | bool | `false` | - | Show WebKit fallback FPS counter (`WEBKIT_SHOW_FPS`) |
304| `engine.webkit.sample_memory` | bool | `false` | - | Enable WebKit fallback memory sampling (`WEBKIT_SAMPLE_MEMORY`) |
305| `engine.webkit.debug_frames` | bool | `false` | - | Enable GTK frame timing debug for the WebKit fallback (`GDK_DEBUG=frames`) |
306| `engine.webkit.force_vsync` | bool | `false` | - | Force VSync for WebKit fallback video playback |
307| `engine.webkit.gl_rendering_mode` | string | `"auto"` | `auto`, `gles2`, `gl3`, `none` | WebKit fallback GStreamer/OpenGL API selection |
308| `engine.webkit.gstreamer_debug_level` | int | `0` | `0-5` | WebKit fallback GStreamer debug verbosity |
309| `default_ui_scale` | float | `1.0` | `> 0` | GTK widget UI scale (1.0=100%, 2.0=200%) |
310| `default_webpage_zoom` | float | `1.2` | `> 0` | Default page zoom (1.0=100%, 1.2=120%) |
311
312`engine.cef.input.scroll_precise_multiplier` controls touchpad/high-resolution wheel scroll speed, and `engine.cef.input.scroll_vertical_multiplier` applies an additional vertical-only scale. `engine.cef.input.touchpad_navigation_max_vertical_ratio` only filters horizontal back/forward swipe recognition; it does not tune vertical scroll speed.
313
314With the CEF engine, `default_ui_scale` sizes Dumber's own interface—toolbars and modals—and controls the density at which the off-screen bridge renders. It does not resize web content, so the page keeps one CSS pixel per GTK logical pixel on every output scale. Use `default_webpage_zoom` or per-site zoom to make pages larger or smaller.
315
316`engine.cef.input.touchpad_navigation_min_delta` uses raw GTK touchpad surface units for back/forward gestures. The default `320.0` matches WebKit-style commit distance to reduce accidental navigation; raise or lower it in `config.toml` to tune gesture sensitivity.
317
318### Legacy key migration
319
320Existing configs using older keys are migrated to the current engine shape. New configs should use the canonical keys above.
321
322| Legacy key | Current key |
323|------------|-------------|
324| `privacy.cookie_policy` | `engine.cookie_policy` |
325| `privacy.itp_enabled` | `engine.webkit.itp_enabled` |
326| `rendering.disable_dmabuf_renderer` | `engine.webkit.disable_dmabuf_renderer` |
327| `rendering.force_compositing_mode` | `engine.webkit.force_compositing_mode` |
328| `rendering.disable_compositing_mode` | `engine.webkit.disable_compositing_mode` |
329| `rendering.gsk_renderer` | `engine.webkit.gsk_renderer` |
330| `rendering.disable_mipmaps` | `engine.webkit.disable_mipmaps` |
331| `rendering.prefer_gl` | `engine.webkit.prefer_gl` |
332| `rendering.draw_compositing_indicators` | `engine.webkit.draw_compositing_indicators` |
333| `rendering.show_fps` | `engine.webkit.show_fps` |
334| `rendering.sample_memory` | `engine.webkit.sample_memory` |
335| `rendering.debug_frames` | `engine.webkit.debug_frames` |
336| `media.force_vsync` | `engine.webkit.force_vsync` |
337| `media.gl_rendering_mode` | `engine.webkit.gl_rendering_mode` |
338| `media.gstreamer_debug_level` | `engine.webkit.gstreamer_debug_level` |
339| `runtime.prefix` | `engine.webkit.prefix` |
340| `performance.*` | `engine.profile`, `engine.pool_prewarm_count`, `engine.zoom_cache_size`, or matching `engine.webkit.*` custom tuning keys |
341| `rendering.mode` | Dropped; no current setting |
342
343## Workspace Configuration
344
345### General
346
347| Key | Type | Default | Description |
348|-----|------|---------|-------------|
349| `workspace.new_pane_url` | string | `"about:blank"` | URL loaded for new panes/tabs (supports `http(s)://`, `dumb://`, `file://`, `about:`) |
350| `workspace.switch_to_tab_on_move` | bool | `true` | When moving a pane to another tab, automatically switch to the destination tab |
351
352**Example:**
353```toml
354[workspace]
355new_pane_url = "dumb://history"
356```
357
358### Pane Mode
359
360| Key | Type | Default | Description |
361|-----|------|---------|-------------|
362| `workspace.pane_mode.activation_shortcut` | string | `"ctrl+p"` | Pane mode activation key |
363| `workspace.pane_mode.timeout_ms` | int | `3000` | Pane mode timeout (ms) |
364| `workspace.pane_mode.actions` | map | See below | Action→keys mappings |
365
366**Default pane mode actions:**
367```toml
368[workspace.pane_mode.actions]
369split-right = ["arrowright", "r"]
370split-left = ["arrowleft", "l"]
371split-up = ["arrowup", "u"]
372split-down = ["arrowdown", "d"]
373stack-pane = ["s"]
374close-pane = ["x"]
375move-pane-to-tab = ["m"]
376move-pane-to-next-tab = ["M", "shift+m"]
377eject-pane-to-window = ["w"]
378
379# Consume-or-expel (niri-style) - very alpha
380consume-or-expel-left = ["["]
381consume-or-expel-right = ["]"]
382consume-or-expel-up = ["{"]
383consume-or-expel-down = ["}"]
384
385focus-right = ["shift+arrowright", "shift+l"]
386focus-left = ["shift+arrowleft", "shift+h"]
387focus-up = ["shift+arrowup", "shift+k"]
388focus-down = ["shift+arrowdown", "shift+j"]
389confirm = ["enter"]
390cancel = ["escape"]
391```
392
393> **Note:** Actions are inverted to key→action map in memory for O(1) lookup performance during navigation.
394
395### Tab Mode
396
397| Key | Type | Default | Description |
398|-----|------|---------|-------------|
399| `workspace.tab_mode.activation_shortcut` | string | `"ctrl+t"` | Tab mode activation key |
400| `workspace.tab_mode.timeout_ms` | int | `3000` | Tab mode timeout (ms) |
401| `workspace.tab_mode.actions` | map | See below | Action→keys mappings |
402
403**Default tab mode actions:**
404```toml
405[workspace.tab_mode.actions]
406new-tab = ["n", "c"]
407close-tab = ["x"]
408next-tab = ["l", "tab"]
409previous-tab = ["h", "shift+tab"]
410rename-tab = ["r"]
411confirm = ["enter"]
412cancel = ["escape"]
413```
414
415> **Note:** Actions are inverted to key→action map in memory for O(1) lookup performance during navigation.
416
417### Vim Mode
418
419| Key | Type | Default | Description |
420|-----|------|---------|-------------|
421| `workspace.vim_mode.activation_shortcut` | string | `"ctrl+y"` | Vim mode activation key |
422| `workspace.vim_mode.timeout_ms` | int | `0` | Vim mode timeout in milliseconds (`0` disables auto-timeout) |
423| `workspace.vim_mode.sequence_timeout_ms` | int | `500` | Timeout for ambiguous multi-key Vim sequences |
424| `workspace.vim_mode.preload_accessibility` | bool | `false` | Pre-enable browser accessibility when a WebView is shown |
425| `workspace.vim_mode.actions` | map | See below | Action→binding mappings |
426
427**Default vim mode actions:**
428
429```toml
430[workspace.vim_mode.actions.vim-scroll-left]
431keys = ["h"]
432desc = "Scroll page left"
433
434[workspace.vim_mode.actions.vim-scroll-down]
435keys = ["j"]
436desc = "Scroll page down"
437
438[workspace.vim_mode.actions.vim-scroll-up]
439keys = ["k"]
440desc = "Scroll page up"
441
442[workspace.vim_mode.actions.vim-scroll-right]
443keys = ["l"]
444desc = "Scroll page right"
445
446[workspace.vim_mode.actions.vim-scroll-down-fast]
447keys = ["shift+j"]
448desc = "Scroll page down fast"
449
450[workspace.vim_mode.actions.vim-scroll-up-fast]
451keys = ["shift+k"]
452desc = "Scroll page up fast"
453
454[workspace.vim_mode.actions.focus-input]
455keys = ["gi"]
456desc = "Focus next page input"
457
458[workspace.vim_mode.actions.heading-next]
459keys = ["]]"]
460desc = "Jump to next heading"
461
462[workspace.vim_mode.actions.heading-prev]
463keys = ["[["]
464desc = "Jump to previous heading"
465
466[workspace.vim_mode.actions.confirm]
467keys = ["enter"]
468desc = "Open selected heading link and exit mode"
469
470[workspace.vim_mode.actions.cancel]
471keys = ["escape"]
472desc = "Cancel/exit mode"
473```
474
475Notes:
476- Vim Mode scrolls and navigates the active webpage inside the active pane only.
477- `gi` focuses the next visible editable page input, starting at the first when no input is active and wrapping after the last.
478- `]]` and `[[` move through visible `h1`–`h6` headings and use the current Dumber theme accent for the selected-heading outline.
479- `confirm` opens the first link inside the selected heading, or a link wrapping that heading, then exits Vim Mode. If the selected heading has no link, it only exits the mode.
480- The default `timeout_ms = 0` means Vim Mode stays active until you exit it or focus moves into an editable/browser UI context. `Ctrl+Y` can still activate it when a page input is already focused.
481- Arrow keys still use the browser engine's native page-navigation path while Vim Mode is active.
482- `Tab` and `Shift+Tab` keep focus traversal inside the page while a page input is focused.
483- Live input, heading, heading-link activation, and page-focus navigation currently use the CEF engine path; WebKit fallback supports the Vim scroll commands while equivalent semantic navigation is pending.
484- Other app-level shortcuts stay suspended until Vim Mode exits, except for the Vim Mode toggle itself.
485- `workspace.styling.vim_mode_color` colors the Vim frame; `workspace.styling.transition_duration` controls its pulse. The mode legend and toast use the workspace styling options below.
486- Scroll execution: CEF and WebKit both use the shared `BuildPageScrollByJS` resolver when the page is ready. Each step starts under the viewport center, walks up through ancestors that can move in the requested direction, and hands scrolling to the document when a nested container reaches its boundary. The application repeater owns held-key cadence; each engine executes one immediate scroll step per tick. Cross-origin frame contents remain best-effort. CEF may use native precision-wheel input only as a pre-frame fallback before the browser/main frame is ready.
487
488### Resize Mode
489
490| Key | Type | Default | Description |
491|-----|------|---------|-------------|
492| `workspace.resize_mode.activation_shortcut` | string | `"ctrl+n"` | Resize mode activation key |
493| `workspace.resize_mode.timeout_ms` | int | `3000` | Resize mode timeout (ms) |
494| `workspace.resize_mode.step_percent` | float | `5.0` | Split ratio step per keystroke (percent) |
495| `workspace.resize_mode.min_pane_percent` | float | `10.0` | Minimum pane size (percent) |
496| `workspace.resize_mode.actions` | map | See below | Action→keys mappings |
497
498**Default resize mode actions:**
499```toml
500[workspace.resize_mode.actions]
501resize-increase-left = ["h", "arrowleft"]
502resize-increase-down = ["j", "arrowdown"]
503resize-increase-up = ["k", "arrowup"]
504resize-increase-right = ["l", "arrowright"]
505resize-decrease-left = ["H"]
506resize-decrease-down = ["J"]
507resize-decrease-up = ["K"]
508resize-decrease-right = ["L"]
509resize-increase = ["+", "="]
510resize-decrease = ["-"]
511confirm = ["enter"]
512cancel = ["escape"]
513```
514
515Notes:
516- Directional actions (`resize-increase-*/resize-decrease-*`) move the split divider.
517- Smart actions (`resize-increase` / `resize-decrease`) grow/shrink the active pane (best-effort) by picking a direction automatically.
518- Timeout is refreshed on each resize keypress so you can keep adjusting without re-entering the mode.
519
520### Global Shortcuts
521
522Global shortcuts are configured under `workspace.shortcuts.actions` using the same `ActionBinding` structure as modal keybindings:
523
524| Action | Default Keys | Description |
525|--------|--------------|-------------|
526| `toggle_floating_pane` | `alt+f` | Toggle the workspace floating pane (persistent session) |
527| `close_pane` | `ctrl+w` | Close active pane (or release floating pane when floating is active) |
528| `next_tab` | `ctrl+tab` | Switch to next tab |
529| `previous_tab` | `ctrl+shift+tab` | Switch to previous tab |
530| `consume_or_expel_left` | `alt+[` | Consume into left sibling stack, or expel left if stacked |
531| `consume_or_expel_right` | `alt+]` | Consume into right sibling stack, or expel right if stacked |
532| `consume_or_expel_up` | `alt+{` | Consume into upper sibling stack, or expel up if stacked |
533| `consume_or_expel_down` | `alt+}` | Consume into lower sibling stack, or expel down if stacked |
534
535**Example:**
536```toml
537[workspace.shortcuts.actions.close_pane]
538  keys = ["ctrl+w"]
539  desc = "Close active pane"
540
541[workspace.shortcuts.actions.next_tab]
542  keys = ["ctrl+tab", "alt+l"]
543  desc = "Switch to next tab"
544
545[workspace.shortcuts.actions.toggle_floating_pane]
546  keys = ["alt+f"]
547  desc = "Toggle floating pane"
548```
549
550> **Tip:** Use `dumb://config` → Keybindings tab to edit shortcuts visually.
551>
552> **Note:** New tab creation uses modal tab mode (Ctrl+T then n/c). This follows the Zellij-style modal keyboard interface.
553>
554> **Note:** Consume-or-expel is experimental and may change behavior between releases.
555>
556> **Warning:** Some `Alt+<key>` shortcuts may conflict with WebKit defaults, website handlers, or your desktop environment.
557> If a binding does not fire, rebind it to a different key.
558
559### Floating Pane
560
561The floating workspace pane is a persistent overlay session: hiding it does not destroy its web content.
562
563- Default behavior includes exactly one floating shortcut: `Alt+F` (`toggle_floating_pane`).
564- URL shortcuts (for example `Alt+G`) are user-defined via `workspace.floating_pane.profiles` and are empty by default.
565- `Alt+F` toggles visibility only and preserves floating state.
566- `Ctrl+W` on an active floating pane closes and releases that floating session for a fresh next open.
567- Floating profile keybindings support modifier combos with `ctrl`, `shift`, and `alt` (for example `ctrl+shift+y` or `ctrl+alt+m`).
568
569| Key | Type | Default | Description |
570|-----|------|---------|-------------|
571| `workspace.floating_pane.width_pct` | float | `0.82` | Floating pane width as fraction of workspace width (`(0,1]`) |
572| `workspace.floating_pane.height_pct` | float | `0.72` | Floating pane height as fraction of workspace height (`(0,1]`) |
573| `workspace.floating_pane.profiles` | map | `{}` | Named URL profiles, each with `keys[]`, `url`, optional `desc` |
574
575**Example:**
576
577```toml
578[workspace.shortcuts.actions.toggle_floating_pane]
579keys = ["alt+f"]
580desc = "Toggle floating pane"
581
582[workspace.floating_pane]
583width_pct = 0.82
584height_pct = 0.72
585
586[workspace.floating_pane.profiles]
587# Empty by default. Add as many entries as needed.
588
589[workspace.floating_pane.profiles.google]
590keys = ["alt+g"]
591url = "https://google.com"
592desc = "Open floating pane on Google"
593
594[workspace.floating_pane.profiles.github]
595keys = ["alt+h"]
596url = "https://github.com"
597desc = "Open floating pane on GitHub"
598```
599
600### Browsing Context Behavior
601
602| Key | Type | Default | Valid Values | Description |
603|-----|------|---------|--------------|-------------|
604| `workspace.browsing_contexts.behavior` | string | `"split"` | `split`, `stacked`, `tabbed`, `windowed` | Placement mode for script-opened browsing contexts |
605| `workspace.browsing_contexts.placement` | string | `"right"` | `right`, `left`, `top`, `bottom` | Split direction when behavior is `split` |
606| `workspace.browsing_contexts.open_in_new_pane` | bool | `true` | - | Allow new browsing contexts to open in the workspace |
607| `workspace.browsing_contexts.follow_pane_context` | bool | `true` | - | Keep new browsing contexts aligned with the parent pane context |
608| `workspace.browsing_contexts.blank_target_behavior` | string | `"stacked"` | `split`, `stacked`, `tabbed` | Placement mode for `_blank` / new-page link contexts |
609| `workspace.browsing_contexts.enable_smart_detection` | bool | `true` | - | Use window properties to refine browsing-context classification |
610| `workspace.browsing_contexts.oauth_auto_close` | bool | `true` | - | Auto-close OAuth browsing contexts after success |
611
612### Workspace Styling
613
614| Key | Type | Default | Description |
615|-----|------|---------|-------------|
616| `workspace.styling.border_width` | int | `1` | Active pane border width (px) - overlay |
617| `workspace.styling.border_color` | string | `"@theme_selected_bg_color"` | Active pane border color |
618| `workspace.styling.mode_border_width` | int | `4` | Reserved; mode frame borders currently use fixed em widths (Vim is thinner) |
619| `workspace.styling.pane_mode_color` | string | `"#4A90E2"` | Pane mode color (blue) |
620| `workspace.styling.tab_mode_color` | string | `"#FFA500"` | Tab mode color (orange) - used for border and toaster |
621| `workspace.styling.session_mode_color` | string | `"#9B59B6"` | Session mode color (purple) - used for border and toaster |
622| `workspace.styling.vim_mode_color` | string | `"#F7768E"` | Vim mode border, pulse, toast, and legend color |
623| `workspace.styling.resize_mode_color` | string | `"#00D4AA"` | Resize mode color (teal) - used for border and toaster |
624| `workspace.styling.mode_indicator_toaster_enabled` | bool | `true` | Show the bottom-left mode toast while a mode is active |
625| `workspace.styling.mode_legend` | string | `"delay"` | `always`, `delay`, or `off`; the legend sits on the active mode border in that mode's color |
626| `workspace.styling.mode_legend_delay_ms` | int | `500` | Wait before showing the legend when set to `delay` (>= 0) |
627| `workspace.styling.mode_legend_linger` | bool | `true` | Keep the legend visible, read-only, after its mode ends while the pointer is over it, until the next key press or click. |
628| `workspace.styling.mode_legend_animations` | bool | `true` | Animate the legend and its keycap feedback |
629| `workspace.styling.transition_duration` | int | `120` | Base Vim border pulse duration (ms); legend appearance is 120 ms |
630
631**Example:**
632
633```toml
634[workspace.styling]
635border_width = 1
636border_color = "@theme_selected_bg_color"
637mode_border_width = 4
638pane_mode_color = "#4A90E2"      # Blue for pane mode
639tab_mode_color = "#FFA500"       # Orange for tab mode
640session_mode_color = "#9B59B6"   # Purple for session mode
641vim_mode_color = "#F7768E"     # Vim mode
642resize_mode_color = "#00D4AA"    # Teal for resize mode
643mode_indicator_toaster_enabled = true
644mode_legend = "delay"
645mode_legend_delay_ms = 500
646mode_legend_linger = true
647mode_legend_animations = true
648transition_duration = 120
649```
650
651## Session
652
653| Key | Type | Default | Description |
654|-----|------|---------|-------------|
655| `session.auto_restore` | bool | `false` | Automatically restore the last session on startup |
656| `session.snapshot_interval_ms` | int | `5000` | Minimum interval between snapshots in milliseconds |
657| `session.max_exited_sessions` | int | `50` | Maximum number of exited sessions to keep |
658| `session.max_exited_session_age_days` | int | `7` | Maximum age in days for exited sessions (auto-deleted on startup) |
659
660### Session Mode
661
662| Key | Type | Default | Description |
663|-----|------|---------|-------------|
664| `session.session_mode.activation_shortcut` | string | `"ctrl+o"` | Session mode activation key |
665| `session.session_mode.timeout_ms` | int | `3000` | Session mode timeout (ms) |
666| `session.session_mode.actions` | map | See below | Action to keys mappings |
667
668**Default session mode actions:**
669```toml
670[session.session_mode.actions]
671session-manager = ["s", "w"]
672confirm = ["enter"]
673cancel = ["escape"]
674```
675
676**Example:**
677```toml
678[session]
679auto_restore = false              # Don't auto-restore on startup
680snapshot_interval_ms = 5000       # Save state every 5 seconds (debounced)
681max_exited_sessions = 50          # Keep last 50 exited sessions
682max_exited_session_age_days = 7   # Delete sessions older than 7 days on startup
683```
684
685## Media
686
687| Key | Type | Default | Valid Values | Description |
688|-----|------|---------|--------------|-------------|
689| `media.hardware_decoding` | string | `"auto"` | `auto`, `force`, `disable` | Hardware video decoding mode |
690| `media.prefer_av1` | bool | `false` | - | Prefer AV1 codec when available |
691| `media.show_diagnostics` | bool | `false` | - | Show media diagnostics warnings at startup |
692
693WebKit fallback GStreamer tuning is configured under `engine.webkit.force_vsync`, `engine.webkit.gl_rendering_mode`, and `engine.webkit.gstreamer_debug_level`.
694
695**Hardware decoding modes:**
696- `auto` (recommended): Hardware preferred with software fallback - fixes Twitch Error #4000
697- `force`: Hardware only - fails if unavailable
698- `disable`: Software only - higher CPU usage
699
700**GPU auto-detection:**
701Dumber automatically detects your GPU vendor (AMD/Intel/NVIDIA) and sets optimal VA-API driver settings:
702- **AMD**: Uses `radeonsi` driver
703- **Intel**: Uses `iHD` driver (modern, for Broadwell+)
704- **NVIDIA**: Uses `nvidia` driver with EGL platform
705
706**Example:**
707
708```toml
709[media]
710hardware_decoding = "auto"    # HW preferred, SW fallback
711prefer_av1 = false            # Let site choose codec
712show_diagnostics = false      # Keep off for daily use
713```
714
715**WebKit fallback GStreamer diagnostics:**
716
717```toml
718[engine.webkit]
719gstreamer_debug_level = 3
720```
721
722Set `media.show_diagnostics = false` and `engine.webkit.gstreamer_debug_level = 0` to return to normal mode.
723
724**Diagnostics CLI:**
725
726```bash
727# Check GStreamer plugins and VA-API status
728dumber doctor --media
729```
730
731## Runtime
732
733| Key | Type | Default | Description |
734|-----|------|---------|-------------|
735| `engine.cef.cef_dir` | string | `""` | Optional CEF runtime directory containing `libcef.so` and resources |
736| `engine.webkit.prefix` | string | `""` | Optional WebKitGTK fallback runtime prefix (e.g., `/opt/webkitgtk`) |
737
738`engine.cef.cef_dir` overrides CEF runtime discovery. For the WebKitGTK fallback, `engine.webkit.prefix` prepends prefix-derived paths to:
739- `PKG_CONFIG_PATH` (for version checks)
740- `LD_LIBRARY_PATH` (for runtime library loading)
741- `GI_TYPELIB_PATH` (GObject introspection)
742- `XDG_DATA_DIRS` (schemas/resources)
743
744**Example:**
745
746```toml
747[engine.cef]
748cef_dir = "/opt/cef"
749
750[engine.webkit]
751prefix = "/opt/webkitgtk"
752```
753
754## Clipboard
755
756| Key | Type | Default | Description |
757|-----|------|---------|-------------|
758| `clipboard.auto_copy_on_selection` | bool | `true` | Automatically copy selected text to clipboard (zellij/tmux-style) |
759
760When enabled, selecting text in a web page immediately copies it to the clipboard with a brief toast notification. Does not apply to text selection in input fields or textareas.
761
762**Example:**
763
764```toml
765[clipboard]
766auto_copy_on_selection = true  # Enabled by default
767```
768
769## Content Filtering
770
771| Key | Type | Default | Description |
772|-----|------|---------|-------------|
773| `content_filtering.enabled` | bool | `true` | Enable ad blocking |
774| `content_filtering.auto_update` | bool | `true` | Automatically update filters |
775
776Notes:
777- Filter data is downloaded from `bnema/ublock-webkit-filters` GitHub releases.
778- Domain whitelist is managed via the database (`content_whitelist` table), not the config file.
779
780## Update
781
782| Key | Type | Default | Description |
783|-----|------|---------|-------------|
784| `update.enable_on_startup` | bool | `true` | Check for updates when browser starts |
785| `update.auto_download` | bool | `false` | Automatically download updates in background |
786| `update.notify_on_new_settings` | bool | `true` | Show toast notification when new config settings are available |
787
788**Example:**
789
790```toml
791[update]
792enable_on_startup = true       # Check for updates on startup
793auto_download = false          # Don't auto-download (prompt instead)
794notify_on_new_settings = true  # Show toast when config migration available
795```
796
797**CLI Commands:**
798
799```bash
800# Check config status and available migrations
801dumber config status
802
803# Add missing settings with default values
804dumber config migrate
805
806# Skip confirmation prompt
807dumber config migrate --yes
808```
809
810## Performance Profiles
811
812Performance profiles tune engine resource behavior. CEF is the default engine; the `engine.webkit.*` custom fields below apply only when using the WebKitGTK fallback.
813
814> **Note:** Performance settings are applied at browser startup. Changes require a restart to take effect.
815
816| Key | Type | Default | Valid Values | Description |
817|-----|------|---------|--------------|-------------|
818| `engine.profile` | string | `"default"` | `default`, `lite`, `balanced`, `max`, `custom` | Performance profile selection |
819| `engine.pool_prewarm_count` | int | `4` | `>= 0` | WebViews to pre-create at startup |
820| `engine.zoom_cache_size` | int | `256` | `>= 0` | Domain zoom levels to cache |
821
822### Profiles
823
824| Profile | Description | Use Case |
825|---------|-------------|----------|
826| `default` | No tuning, uses engine defaults | Compatibility baseline, troubleshooting |
827| `lite` | Reduced resource usage | Low-RAM systems (< 4GB), battery saving |
828| `balanced` | Moderate tuning | General use |
829| `max` | Maximum responsiveness | Heavy pages (GitHub PRs, complex SPAs), high-end systems |
830| `custom` | Manual control over all settings | Advanced users who want fine-grained control |
831
832**Example:**
833
834```toml
835[engine]
836profile = "default"
837pool_prewarm_count = 4
838zoom_cache_size = 256
839```
840
841### WebKit fallback custom profile settings
842
843When `engine.profile = "custom"` and `engine.type = "webkit"`, you can configure individual WebKit tuning options:
844
845| Key | Type | Default | Description |
846|-----|------|---------|-------------|
847| `engine.webkit.skia_cpu_painting_threads` | int | `0` | Skia CPU rendering threads (0=unset) |
848| `engine.webkit.skia_gpu_painting_threads` | int | `-1` | Skia GPU rendering threads (-1=unset, 0=disable) |
849| `engine.webkit.skia_enable_cpu_rendering` | bool | `false` | Force CPU rendering |
850| `engine.webkit.web_process_memory_limit_mb` | int | `0` | Web process memory limit in MB (0=unset) |
851| `engine.webkit.web_process_memory_poll_interval_sec` | float | `0` | Memory check interval (0=WebKit default: 30s) |
852| `engine.webkit.web_process_memory_conservative_threshold` | float | `0` | Conservative cleanup threshold (0=unset) |
853| `engine.webkit.web_process_memory_strict_threshold` | float | `0` | Strict cleanup threshold (0=unset) |
854| `engine.webkit.network_process_memory_limit_mb` | int | `0` | Network process memory limit in MB |
855| `engine.webkit.network_process_memory_poll_interval_sec` | float | `0` | Network memory check interval |
856| `engine.webkit.network_process_memory_conservative_threshold` | float | `0` | Network conservative threshold |
857| `engine.webkit.network_process_memory_strict_threshold` | float | `0` | Network strict threshold |
858
859**Custom WebKit fallback example:**
860
861```toml
862[engine]
863type = "webkit"
864profile = "custom"
865pool_prewarm_count = 6
866zoom_cache_size = 256
867
868[engine.webkit]
869skia_cpu_painting_threads = 4
870skia_gpu_painting_threads = 2
871web_process_memory_limit_mb = 1024
872web_process_memory_conservative_threshold = 0.4
873web_process_memory_strict_threshold = 0.6
874```
875
876> **Important:** Individual `engine.webkit.*` tuning fields are ignored unless `engine.profile = "custom"`.
877
878## Downloads
879
880| Key | Type | Default | Description |
881|-----|------|---------|-------------|
882| `downloads.path` | string | `""` | Download directory path (empty = `$XDG_DOWNLOAD_DIR` or `~/Downloads`) |
883
884Downloads are saved to the configured directory with toast notifications for download started, completed, and failed events.
885
886**Example:**
887```toml
888[downloads]
889path = ""  # Use system default ($XDG_DOWNLOAD_DIR or ~/Downloads)
890
891# Or specify a custom directory:
892# path = "/home/user/my-downloads"
893```
894
895## Environment Variables
896
897All config values can be overridden via environment variables with the prefix `DUMBER_`:
898
899```bash
900# Database
901DUMBER_DATABASE_PATH=/custom/path/db.sqlite
902
903# Engine/rendering (examples)
904DUMBER_ENGINE_TYPE=cef
905# CEF defaults to the GPU-first Vulkan DMABUF stack.
906# Use EGL/OpenGL for driver compatibility:
907# DUMBER_ENGINE_CEF_RENDER_STACK=egl
908# WebKit fallback rendering overrides:
909# DUMBER_ENGINE_WEBKIT_DISABLE_DMABUF_RENDERER=true
910# DUMBER_ENGINE_WEBKIT_GSK_RENDERER=opengl
911DUMBER_DEFAULT_WEBPAGE_ZOOM=1.5
912
913# Logging
914DUMBER_LOG_LEVEL=debug
915DUMBER_LOG_FORMAT=json
916```