Custom DarkButton component with Dracula theme colors:
- bg-secondary base, button-hover on hover
- primary variant with accent-purple
- Disabled state with reduced opacity
- Consistent 28px height, 4px border-radius
Also fixes PickDarkButton/KeyDarkButton naming errors from agent.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Full port of the KaSe/KeSp split keyboard configurator from egui to Slint:
- 6 tabs: Keymap, Advanced, Macros, Stats, Settings, Flash
- Responsive keyboard view with scale-to-fit and key rotations
- Key selector popup with categorized grid, MT/LT builders, hex input
- Combo key picker with inline keyboard visual
- Macro step builder with visual tags
- Serial communication via background threads + mpsc polling
- Heatmap overlay with blue-yellow-red gradient
- OTA flasher with prog port VID filtering and partition selector
- WPM polling, Tamagotchi, Autoshift controls
- Dracula theme matching egui version
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
