Bug A: Replace U+21C4 (tofu on FiraMono) with plain ASCII "M" on the
Modes action button.
Bug B: HudAvatar disc was invisible against BG_HUD_BAND (same dark
grey). Switch background to ACCENT_PRIMARY and text to TEXT_PRIMARY so
the disc is clearly visible.
Bug C/D: toggle_hud_on_tap improvements:
- Drain buffered TouchInput events in the early-return path (scrim
present or paused) so the modal-dismiss frame does not replay the
button tap's Started+Ended pair as a spurious toggle.
- Stop clearing start_pos on TouchPhase::Moved — Android fires Moved
even for clean taps (jitter), and the distance check at Ended already
rejects real drags via drag.is_idle(). Clearing it silently swallowed
toggle attempts on physical devices.
- Increase HUD_TAP_SLOP_PX from 15 → 25 for better tap recognition.
Also reduces Android HUD_BAND_HEIGHT from 128 → 80 px now that action
buttons live in the bottom bar rather than the top band.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
funman300
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