fix: support realistic solder mask colors

[rushabhcodes]

Adds support for realistic solder mask colors so <board solderMaskColor="..." /> renders with a true-to-life laminate finish instead of a flat fill.

What changed

• soldermask-drawing.ts — derive the mask fill from the configured color, with proper base/shade handling per color.
• create-soldermask-texture-for-layer.ts — pass the board's solder mask color through to the texture generator.
• stories/solder-mask-color.stories.tsx — a story per supported color.

Supported colors

Rendered output

Captured from the new SolderMaskColor stories (20mm × 20mm board, single 0402 resistor).

Usage

<board width="20mm" height="20mm" solderMaskColor="blue">
  <resistor name="R1" footprint="0402" resistance="1k" pcbX={0} pcbY={0} />
</board>

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Project	Deployment	Actions	Updated (UTC)
3d-viewer	Ready	Preview	Aug 20, 2026 6:23pm

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[mohan-bee]

nice one !

[tscircuitbot]

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