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## Summary Fixes #1438. Map + Live node markers and customizer per-role overrides did not honor CB-preset switches because: - SVG markers baked `ROLE_COLORS[role]` hex into `fill=` attribute at marker creation. Existing markers were stale until full page reload after `MeshCorePresets.applyPreset(...)`. - `setRoleColorOverride` only mutated the JS `_roleOverrides` map; the `--mc-role-{role}` CSS var (source of truth for cluster pills, route lines, all CSS-var-driven surfaces) was never updated, so operator picks were invisible to those surfaces. ## Fix shape Empirically verified in headless chromium: CSS-var-on-SVG-fill **does** repaint mounted elements when the variable value changes. Pure CSS-var migration is sufficient — no `cb-preset-changed` listener needed on the marker layers. - **`public/roles.js makeRoleMarkerSVG`** — default fill is now `var(--mc-role-{role})`; callers passing an explicit colour (matrix mode, stale dim) still win. - **`public/map.js makeMarkerIcon` + observer star overlay** — same migration to `var(--mc-role-{role})` / `var(--mc-role-observer)`. - **`public/live.js addNodeMarker`** — passes `null` to `makeRoleMarkerSVG` so the var path is used; inline fallback SVG also uses the var. - **`public/roles.js setRoleColorOverride`** — now writes `--mc-role-{role}` on `documentElement.style`. On clear, restores the preset value captured at first-override time, preserving #1412's contract ("clearing override reverts to active preset"). ## TDD Red commit: `test-issue-1438-marker-css-vars.js` asserts the CSS-var contract across all four files. Failed 5 assertions on `master`: - `makeRoleMarkerSVG emits var(--mc-role-X) in default fill path` - `makeMarkerIcon body references var(--mc-role-*)` - `observer star overlay uses var(--mc-role-observer)` - `addNodeMarker body references var(--mc-role-*)` - `setRoleColorOverride body writes --mc-role-{role} CSS var` Green commit: code fix → all 13 assertions pass. ## Verification - `test-issue-1438-marker-css-vars.js` (new) — 13/13 pass - `test-issue-1407-cb-preset-propagation.js` — 61/61 pass (no regression) - `test-issue-1412-customizer-no-override.js` — 13/13 pass (clear-override-restores-preset contract preserved by `_presetCssSnapshot`) - `test-marker-outline-weight.js` — 6/6 pass - Full `test-all.sh` — same pre-existing pass/fail count (no new failures introduced) Browser verified: CSS-var-on-SVG-fill repaint behavior confirmed live in headless chromium (about:blank test svg, `setProperty('--test-color', '#0000ff')` flips a mounted `<rect fill="var(--test-color)">` from red to blue without re-mount). Staging hot-deploy + CDP verification will happen post-merge (per fix-issue playbook). ## Preflight `bash ~/.openclaw/skills/pr-preflight/scripts/run-all.sh origin/master` — all gates clean. --------- Co-authored-by: OpenClaw Bot <bot@openclaw>