Tests that CSS media features can be overridden.
matchMedia("(prefers-color-scheme: __invalid__)").matches: false
matchMedia("(prefers-color-scheme: __invalid__)").matches applied: 3px x 2px
matchMedia("(prefers-color-scheme: no-preference)").matches: false
matchMedia("(prefers-color-scheme: no-preference)").matches applied: 3px x 2px
matchMedia("(prefers-color-scheme: light)").matches: true
matchMedia("(prefers-color-scheme: light)").matches applied: 3px x 2px
matchMedia("(prefers-color-scheme: dark)").matches: true
matchMedia("(prefers-color-scheme: dark)").matches applied: 4px x 2px
matchMedia("(prefers-color-scheme: __invalid__)").matches: false
matchMedia("(prefers-color-scheme: __invalid__)").matches applied: 3px x 2px
matchMedia("(prefers-reduced-motion: __invalid__)").matches: false
matchMedia("(prefers-reduced-motion: __invalid__)").matches applied: 3px x 2px
matchMedia("(prefers-reduced-motion: no-preference)").matches: true
matchMedia("(prefers-reduced-motion: no-preference)").matches applied: 3px x 2px
matchMedia("(prefers-reduced-motion: reduce)").matches: true
matchMedia("(prefers-reduced-motion: reduce)").matches applied: 3px x 3px
matchMedia("(prefers-reduced-motion: __invalid__)").matches: false
matchMedia("(prefers-reduced-motion: __invalid__)").matches applied: 3px x 2px
matchMedia("(color-gamut: __invalid__)").matches: false
matchMedia("(color-gamut: __invalid__)").matches applied: 3px x 2px
matchMedia("(color-gamut: p3)").matches: true
matchMedia("(color-gamut: p3)").matches applied: 6px x 6px
matchMedia("(color-gamut: rec2020)").matches: true
matchMedia("(color-gamut: rec2020)").matches applied: 7px x 7px
matchMedia("(color-gamut: __invalid__)").matches: false
matchMedia("(color-gamut: __invalid__)").matches applied: 3px x 2px
matchMedia("(prefers-color-scheme: dark) and (prefers-reduced-motion: reduce)").matches: true
matchMedia("(prefers-color-scheme: dark) and (prefers-reduced-motion: reduce)").matches applied: 999px x 999px
matchMedia("(prefers-color-scheme: __invalid__)").matches: false
matchMedia("(prefers-color-scheme: __invalid__)").matches applied: 3px x 2px