Previously, only UI chrome colours and 3 editor vars were written to
theme note frontmatter. CSS vars like --lists-bullet-size, --headings-h1-font-size,
etc. remained unset, so EditorTheme.css rules had no effect.
- Expand DEFAULT_VAULT_THEME_VARS from 46 to 140 entries, covering every
property from theme.json (editor, headings, lists, checkboxes, inline
styles, code blocks, blockquote, table, horizontal rule, colors)
- Fix missing px suffix on editor-font-size and editor-max-width
- Add missing semantic vars: bg-card, text-tertiary
- Refactor built-in vault themes from const strings to generated functions
with per-theme colour overrides (DRY, all themes get editor properties)
- Quote var() references in frontmatter to prevent YAML parse issues
- Add regression tests for create_vault_theme and seed_vault_themes
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>