Settings

The Settings window opens from the menu bar or a fixed shortcut. Edit > General Settings (Alt+F9) opens the Settings tab, Edit > Interface Settings (Alt+F10) the Interface tab, Edit > Keyboard Settings (Alt+F11) the Keyboard Setting tab, Edit > Export Settings (Alt+F12) the Export tab, and Help > About (Alt+F1) the About tab. These five shortcuts cannot be rebound, and they also switch tabs while the window is already open.

The five tabs

Tab	What it holds
Settings	Workflow defaults in eight accordions: Manual Remesh (with the UV and bake defaults), Auto Remesh, Voxels, Memory Settings, Miscellaneous Settings, Mouse Settings, and 3D Connexion and Tablet.
Interface	Language, sidebar side, dock layouts per mode, accordion style, scale, performance and startup display options, the color theme and its colors, the viewport background, and the UV grid image.
Keyboard Setting	Rebindable shortcuts and keymap presets.
Export	Which 3D mesh and image formats the save dialogs offer, and which one they preselect.
About	Information about the app.

Editing model

Every control takes effect as you change it — a color drag updates the viewport while you drag — but nothing is written to disk until you click Save. Every tab except About ends with the same row: Save saves all settings and closes the window; Revert returns to the last saved state without closing; Cancel (or Esc, or the window's close button) returns to the last saved state and closes. The Settings tab also has Restore Defaults, which resets every setting on all tabs, including colors — still only a preview until you click Save.

Two things on the Interface tab save straight away instead: the Numerical sliders: choice, and the UV grid's Make Default button.