Should flag after pixel sampling

White text on light image should be sampled by pixel contrast.

Dark text on dark image should be sampled by pixel contrast.

Translucent white text on a pale pattern should use rendered pixels.

Muted gray text on a misty image should be sampled by pixel contrast.

Should pass after pixel sampling

White text on dark image should pass the pixel contrast fallback.

Dark text on light image should pass the pixel contrast fallback.

White text over a dark image underlay should pass.

Dark text over a light SVG underlay should pass.