README file from
GithubYosuke Glass
A glass-and-neon theme for Obsidian with a Japanese-first font stack.
- Dark: Future Glass — deep navy ground, frosted-glass panels, cyan / purple / pink neon accents.
- Light: Paper — warm paper ground, white note card, the same accents toned down for reading.
- Japanese typography first — Hiragino Sans (macOS / iOS) → Yu Gothic (Windows) → Noto Sans CJK (Android) so bold headings render properly in Japanese. Latin falls back to Inter / system fonts. No fonts are downloaded; nothing leaves your device.
- Written to be maintainable — variables first, Obsidian's
--color-base-*ladder for both modes, one feature per section, edit view and reading view always styled as a pair, and zero!important.

Companion plugin
Yosuke Design (companion plugin, not yet published) is the settings panel for this theme: light/dark palettes, typography, Nick Milo–style folder color bands, custom fonts from your vault, and a design.md file you can hand to any AI to restyle your vault. The theme works on its own; the plugin requires the theme.
Install
Settings → Appearance → Themes → Manage → search Yosuke Glass.
Manual: copy manifest.json and theme.css into .obsidian/themes/Yosuke Glass/ and select the theme.
Structure of theme.css
body { }— variables only (palette, neon colors, fonts, sizes, radii).theme-dark/.theme-light— the--color-base-00…100ladder and accent HSL- Per-feature styling, only where variables cannot reach (each block styles edit view and reading view together)
- Third-party plugin overrides (isolated at the end)
License
MIT
日本語
ガラスとネオンの Obsidian テーマ。黒は Future Glass(濃紺の地・すりガラスの面・シアン/パープル/ピンクのネオン)、白は Paper(紙の地・白いノートカード・同じアクセントを読みやすく落とした配色)。
フォントは日本語優先。Hiragino Sans → Yu Gothic → Noto Sans CJK の順で、見出しの太字がちゃんと出ます。フォントのダウンロードや通信はしません。
相棒プラグイン Yosuke Design で、色・フォント・フォルダの色帯・Vault 内フォントの読み込み・design.md による一括適用ができます(テーマ単体でも動きます)。