Hermes Themes Skill

Author a Hermes skin — one YAML file that themes the CLI, the TUI, and the desktop GUI at once. The skin engine (hermes_cli/skin_engine.py) resolves the active skin and the gateway pushes it to every surface, so a file dropped in ~/.hermes/skins/ is the theme analogue of a plugin: no code, all surfaces. This skill covers writing a good skin and activating it; it does not build GUI theme editors or ship built-in presets.

When to Use

• The user asks for a custom look ("make me a synthwave theme", "dark forest vibes", "match my brand colors") for Hermes itself.
• The user wants the CLI/TUI/desktop to share one coordinated palette.
• The user wants to iterate live ("that coral is too loud, make it teal") — edit the active skin's YAML and every surface repaints as your tool finishes.

Prerequisites