Preferences tab added for the internal UI.

docs/user.md

@@ -362,7 +362,7 @@ indentation feedback, and attribute feedback are configurable in Reading.
 ## Fenrir Menu and quick settings
 
 Press **Fenrir+F** to open the Fenrir Menu. It contains settings tabs for
-presentation, speech, sound, reading, keyboard, clipboard, and other options.
+presentation, speech, sound, reading, keyboard, internal UI, clipboard, and other options.
 The form captures its navigation keys until it closes.
 
 - At the tab selector, use arrows to choose a tab.
@@ -376,6 +376,19 @@ Up and Down change the value by 10; Left and Right change it by 1. Sound volume
 between 0.0 and 1.0. Backend, device, keyboard layout, sound theme, and other
 launch-only settings take effect on the next start.
 
+The **Internal UI** tab controls speech in Fenrir's own menus and dialogs.
+**Announce grid row and column** and **Announce item position** are independent
+checkboxes, both enabled by default. Disable coordinates to omit “row 1, column 2”;
+disable item position to omit “2 of 20”. Item names and grid navigation remain
+available with both disabled. Saved changes apply immediately to Emoji and
+Spellcheck grids and persist across launches. These are global settings, so this
+tab is omitted from application settings. The TOML keys are
+`internal_ui.announce_grid_coordinates` and `internal_ui.announce_item_position`.
+
+Settings saves use mode `644` for the standard system settings file at
+`/etc/fenrirscreenreader/settings/settings.toml`, so other users can read it as a
+startup fallback. Personal settings and application profiles use mode `600`.
+
 Quick settings work without opening the form:
 
 | Shortcut | Action |