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Implement dynamic APCA contrast calculation in design simulator #25

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Merged
REX-codebase merged 1 commit into from
Jul 18, 2026
Merged

Implement dynamic APCA contrast calculation in design simulator #25

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12 changes: 10 additions & 2 deletions skills/utils/design-simulator.js
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Original file line number Diff line number Diff line change
Expand Up @@ -845,7 +845,11 @@ function runTasteAudits(cssText, htmlContent, profile = 'Standard') {
return {
deduction: finalDeduction,
bonus: bonusScore,
warnings
warnings,
colorMetrics: {
minLightness,
maxLightness
}
};
}

Expand Down Expand Up @@ -983,9 +987,13 @@ function main() {
console.log(`- Visual Weight Centroid: (${centroid.cx}, ${centroid.cy}) | Total Weight Mass: ${centroid.totalWeight}`);
if (centroid.isDynamicallyBalanced) console.log(`- Dynamic Balance: Achieved (Offset by counter-weights)`);
if (hasIntentionalOffset) console.log(`- Intentional Offset: Documented in design registry`);
const minL = tasteAudit.colorMetrics ? tasteAudit.colorMetrics.minLightness : 0;
const maxL = tasteAudit.colorMetrics ? tasteAudit.colorMetrics.maxLightness : 1;
const contrastValue = calculatePerceptualContrast(minL * 100, maxL * 100);

console.log(`- Cognitive Load Index: ${friction.score} | Rating: ${friction.rating}`);
console.log(` [Elements Count: ${friction.totalElements} | Interactive Count: ${friction.interactiveCount} | Colors: ${friction.colorCount} | Chunks: ${friction.chunkCount}]`);
console.log(`- APCA Contrast Verification: Perceptual Lightness Compliance Checked.`);
console.log(`- APCA Contrast Verification: Calculated Lc ${contrastValue} (Primary Pair)`);
console.log(`- Layout Balance Advice: ${friction.advice}\n`);

console.log('--- STATIC DESIGN SIGNAL AUDIT ---');
Expand Down