GeezerVison

Summary

• A block's tile disagreed with the card it named: the canvas brands only third-party integrations and gives everything first-party its role accent, but the command palette, connection lists, tag menus and output pickers painted straight from the catalog bgColor. Webhook Trigger showed green in the palette and blue on the canvas it was about to be dropped onto (reported by Emir), and the five roleless first-party triggers (api_trigger, chat_trigger, circleback, input_trigger, manual_trigger) showed catalog blues where the canvas shows neutral.
• Read the canvas rule from one place (hasBlockAccent) and render it through one component (BlockTile), then point every surface that lists a block at them — canvas, editor header, preview, toolbar, palette, connection picker, terminal, logs trace rows, connection lists, tag menus, output pickers, tables workflow sidebar.
• Folded in the duplication the split had grown: 3 copies of TagIcon, 5 hand-rolled tile divs, the toolbar's second encoding of the accent rule, a third icon-contrast helper running its own brightness threshold (0.63 vs 0.75 everywhere else), and the dead showColoredIcon prop that every caller passed as true.
• Tiles now share the chip radius, and the tile forces its own icon colour — popover and command rows paint descendants through [&_svg]:text-*, which outranks a plain utility and was washing out pale brand tiles.

Type of Change

• Bug fix

Testing

bun run type-check clean; 2711 workspace tests pass. New blocks/accent.test.ts pins the rule (verified it goes red against the previous one), and a palette test pins that a first-party trigger renders the accent chip while a third-party one keeps its brand tile.

Not yet clicked through in a browser — the colour rule is test-covered, but the radius/size unification is worth a visual pass.

Notes

• Large detail headers (preview panel, trace-view detail) keep their own 18px treatment and are left for a follow-up; this PR unifies row/list tiles.
• Public landing pages deliberately keep their own tile — BlockTile reaches the block registry and must not pull it into that bundle.

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)