Dark-mode legibility wave, advanced regex builder, release-pipeline repair (2026-07-24)

[DingDingChae]

Dark-mode legibility wave, advanced regex builder, release-pipeline repair (2026-07-24)

What changed

Dark mode was systemically broken ("hardly visible text everywhere"): StateColor::darkModeColorFor was applied twice on many paint paths and the mapping was not idempotent — MD3::Dark::onSurface was hex-identical to a light-theme key, so already-correct dark text was remapped to near-black (#2f3036 on dark surfaces, pixel-verified from captures). Fixed by severing the hex aliases with imperceptible 1-step nudges plus invariant comments, along with: the unpainted white squares behind rounded bottom-bar controls (stale parent-background snapshots), the malformed green "capsule" (pill radius exceeding half-width), unreadable disabled button text, the Process-header switch/title overlap, orange category glyphs (modified-preset colour fallback leaking onto every glyph), dim field values, the grey caption band, and a stray floating icon overlapping the preset-row undo button.

Advanced regex builder (user mandate): the search "tune" popover is now a full guided builder — literals with auto-escaping, character classes, anchors, groups/alternation, quantifiers (incl. lazy), a raw pattern editor with bidirectional sync, engine identification (std::regex / std::wregex, ECMAScript), live syntax feedback with friendly error mapping, a collapsible Test section with sample text, highlighted matches and capture groups, and copy-to-clipboard. Evaluation is bounded (2 000-char patterns, 20 000-char samples, 200 matches) and guarded against catastrophic backtracking. Wired into every search surface: Preferences, user presets, device farm, object-list sidebar (previously showed the builder but ignored it), preset-editor pill, Ctrl+F global search, device picker, and the two ImGui filters (font picker, assembly tree) via guarded .* toggles. Docs: docs/features/windows/regex-builder.md.

"Latest release app not launching" root-caused and self-healed: the release binary was fine — fresh installs died at the OpenGL < 2.0 gate on GPU-less machines (VMs / Microsoft Basic Display Adapter). Releases now ship a hash-pinned Mesa llvmpipe 26.1.3 payload (mesa\ subfolder; archive + per-DLL SHA-256 verified in CI) and the app relaunches itself once onto software rendering when the gate trips, with a strict loop guard. Docs: docs/features/windows/software-gl-fallback.md.

Release pipeline repaired: on: push: {} also matched the tags the release job itself created, so every release re-triggered a build of the same commit and published another mis-titled release — an unbounded loop that piled up ~165 echo releases and scrambled the list order. Push triggers are branches-only now, the release job refuses tag refs, all echo runs were cancelled and echo releases deleted (tags preserved). Remaining: the newest good build, the badge "Latest", and the launch-verified portable preview.

CI speed: per-ref cancel-in-progress (superseded wave builds stop early), and the Windows app build moved to Ninja + sccache (GitHub Actions cache backend) with SLIC3R_MSVC_PDB=OFF on CI — /Zi defeats sccache and races the shared PDB under parallel cl (C1041), while /Z7 pushes libslic3r_gui.lib over the 4 GiB .lib limit (LNK1248); CI ships no PDBs, so it now compiles without debug info. Local builds keep /Zi.

Localization: 70 new Hong Kong Cantonese strings (451 total), .mo rebuilt reproducibly (compile_translation.py --check green).

Verification evidence

• Serial local Release build: 0 errors, BambuStudio.dll relink verified against object timestamps.
• Headless dark-mode recapture (Mesa llvmpipe + off-screen desktop + PrintWindow) of every reported defect: bottom action bar ("Not sliced" legible, both pills readable, white square gone, clean capsules), field values legible, Global/Objects header with no overlap, neutral segment glyphs, dark caption to the full width.
• Light-mode regression pass on the same surfaces.
• Catalog gate: 451 validated translations, reproducible .mo.
• CI: run 30081955084 (head f8461434e) was in progress at posting time — it also validates the new Ninja + sccache pipeline; the outcome will be recorded in HANDOFF.md when it lands. Earlier pipeline commits: 0d4091229, 6be213882, 2486ebbf5

Commits

• e2ed70365 — dark-mode legibility + advanced regex builder + softgl self-heal (38 files); f8461434e — stray undo-to-sys glyph fix + ROADMAP

Remaining work

• End-to-end verification of the software-GL fallback from a real installed release on a GL<2.0 machine (the DLL pair and env recipe are the locally proven ones; the installed-flow run is pending the next release).
• sccache warm-cache timing numbers (first cached run populates; the second shows the real speedup).
• The params-panel top strip lays out 8 px wider than the sidebar clip width — cosmetic, tracked.