Qt sections
Source: src/app/ui/qt/sections
The sections package composes the major window regions: the right-side controls, bottom data panel, and transport controls. The main window owns the overall layout and places these sections around the preview; handlers connect their user actions to application workflows and refreshes.
See Main window, preview and custom widgets, and UI handlers. Section widgets present state; they do not own session or worker lifecycle.
The right control panel groups detection, tracking, preview, render, and optional privacy settings into collapsible sections. Form labels share an aligned column, and related execution actions share rows to keep the sidebar compact without hiding settings. Preview and export controls precede the optional privacy section. The application theme is selected in Settings and can follow the system palette or use the explicit light/dark palettes. Primary detection, tracking, and export actions are visually emphasized without changing their behavior.
The bottom data tables render each annotation's color as a compact swatch; the exact color value remains available as a tooltip and accessible text. Annotation actions use a compact icon toolbar, grouped into editing, frame duplication, and deletion. Each button retains a descriptive tooltip and an accessible name; directional arrows distinguish previous/next-frame actions.