Chrome sits on a bottom scrim over the video, so it uses fixed on-video whites (--pl-*, the web sibling of TV’s glass tiers) — played progress and the knob are always --yellow-solid; buffered is a brighter white ahead of it. Time is --font-ui-mono tabular. The title shows the raw filename — the player never invents a poster or a parsed title. Chrome auto-hides after 3s of pointer idle; any keypress brings it back.

The settings/subtitle popover is the standard menu recipe (see Menu) anchored above the control bar — theme surface, not on-video glass. The active track carries a yellow check. Buffering replaces the center of the frame with a single spinner (yellow arc on 20% white); the chrome stays put. Never block the scrubber while buffering.