chromium.theme drives Chrome/Chromium's BrowserThemeColor policy. The light
variant shipped a stale dark green (#5F8170); both variants now use their
Waybar background (light #f0ead9, dark #232A44) so the browser frame matches.
omarchy-theme-install clones the repo into ~/.config/omarchy/themes/<name>
and omarchy-theme-set stages only the repo root. Moving the light variant
to the root makes 'omarchy theme install' produce a working theme; the dark
variant stays as tintenblau-dark/ subfolder.