--component-bg-active alone. Buttons, the search field and history chips step fill to --component-bg-active and border --border to --border-hover, at --border-width (1px) in both states. Focus applies instantly: no transition, scale, shadow or halo.--component-bg-active--component-bg → --component-bg-active; border --border → --border-hover; 1px--component-bg-active; its label appears abovetv.focus.borderWidth (3px): apps/tv draws the control edge with --border-width