Intent of color.ts ×3

All 4 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/ 4 tests
- base/ 4 tests
  - test/ 4 tests
    
    common/ 4 tests
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/common/color.test|title=Color ensureContrastRatio should return a color that meets the contrast ratio (black bg)|occurrence=1 Inherited color.ts ×3
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/common/color.test|title=Color ensureContrastRatio should return a color that meets the contrast ratio (white bg)|occurrence=1 Inherited color.ts ×3
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/common/color.test|title=Color ensureContrastRatio should return undefined if the color already meets the contrast ratio (black bg)|occurrence=1 Inherited color.ts ×1
    
    mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/common/color.test|title=Color ensureContrastRatio should return undefined if the color already meets the contrast ratio (white bg)|occurrence=1 Inherited color.ts ×1