Room and tool buttons draw from the high-res atlas in the high-res style

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/main.rs

@@ -481,6 +481,7 @@ fn apply_settings(s: &Settings, r3d: &mut R3d) {
     r3d.max_lights = s.max_lights as usize;
     r3d.pixel_rows = settings::pixel_rows(s.pixel_rows);
     holiday::set_override(s.debug_holiday);
+    gfx::set_high_res_ui(r3d.pixel_rows >= settings::HIGH_RES_ROWS as u32);
     audio::set_volumes(s.music_volume, s.volume, s.muted);
 }