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Themes

Themes and gloss

XOSC ships with five themes:

  • Midnight — the default. Indigo / cyan accent on near-black.
  • Obsidian — deep blacks, emerald accent.
  • Vapor — purple-pink retrowave.
  • Sunlit — clean light, violet accent.
  • Paper — warm light, sky-blue accent.
Pick one in Settings. Theme switches apply instantly; nothing reloads.

Gloss

The Gloss intensity slider scales every highlight, inner shadow, and glow on every glossy surface. At 0 the UI looks matte and modern; at 1.5 it's positively wet. Adjust to taste.

Custom palettes

Shipping a full custom theme editor is on the roadmap. Today, you can edit %APPDATA%/XOSC/xosc.config.json and put a customTheme object under settings, with the same shape as the built-in themes (vars mapping CSS custom properties to colour strings). XOSC will use the custom theme when one is set; clear it to fall back to the built-in chosen by themeId.