Resolved-unresolved state accessibility

This was reported in the Italian forums. The resolved/unresolved state is conveyed via a "border" (actually a CSS generated element background) color. Red or green.

For accessibility, color alone is not sufficient to convey such an important information and it would need an additional indicator, a different shape or something like that. Worth reminding the most common form of color perception impairment is about green and reds.

Also, I'm not 100% sure if it is actually used, but besides the red #e6000a I see some occurrences of red which translates to #ff0000 and when used against white, this red gives a contrast ratio under the 4.5:1 recommended by the WCAG level AA.

Locate the CSS-generated element background that conveys resolved and unresolved states, then inspect how the red and green indicators are used. Verify that the states have a non-color indicator and that red against white meets WCAG AA contrast; done means the distinction remains clear for users with color-perception impairments.

Written by the indexing model from the issue text.