Two issues from one session:
* File tree: ZDDC-conforming filenames render as a single line
even though the JS already produced two-div markup (filename-main +
filename-secondary). Cause: .tree-row__label was display:flex
(row-direction), so the two divs laid out side-by-side. Fix: wrap
each label's text in a new .tree-row__name span styled
flex-direction:column. Both file and folder code paths use the
same wrapper now; non-ZDDC entries collapse to a single
.filename-main line so typography stays consistent across the tree.
Tested by injecting a ZDDC filename into a mock directory and
asserting filename-secondary's bounding-box top is below
filename-main's bottom.
* Toast UI Editor was unreadable in dark mode. Toast UI ships with
light-only chrome; its .toastui-editor-md-container has color #222
on a transparent bg, so when mdedit's dark theme rendered the
surrounding pane in #1e1e1e the editor text fell on near-black
background → effectively invisible. Fix: add CSS overrides in
mdedit/css/editor.css that target the editor's load-bearing
surfaces (md-container, md-preview, ww-container, ProseMirror,
toolbar, mode-switch tabs, popups) and apply var(--bg) /
var(--text). Toolbar icons get a filter:invert(0.85) hue-rotate
to flip the sprite-baked dark glyphs. Both manual override
(data-theme="dark") and OS-pref auto fallback (prefers-color-scheme)
are covered. Tested by computing contrast ratios on every editor
surface in dark mode — all came in at 10:1+ (well above WCAG AA's
4.5:1).
Embedded snapshots refreshed to current main HEAD's dev build label.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>