GTK4 toolbars are used automatically on supported layer-shell paths, with a feature-equivalent builtin Cairo fallback.
The top strip has shapes/overflow popovers, current-binding shortcut badges, width-aware degradation, and minimized restore tabs.
The four-pane side palette keeps Draw, Canvas, Session, and Settings workflows organized and remembers per-pane scrolling.
Toolbars are configurable: show/hide individual items, collapse side sections, reorder top tools/top controls/side sections, and save the result to TOML. See Toolbars.
The configurator has global search with scoped matches across tabs, sections, sessions, boards, presets, profiles, and keybindings.