[Accessibility] Used text color should have enough contrast with background

When text is placed on a background that does not provide enough contrast with the text, that text becomes difficult to read or impossible to some. Some of the deno_doc output does not provide enough contrast to meet the WCAG Level AA requirement of 4.5:1. For example the Function & Method symbols on their backgrounds:  Text color: #056cf0 Background color: #dae9fd  A slightly darker color like #1b61dc would pass the requirement: https://contrast-finder.tanaguru.com/result.html?foreground=%23056CF0&background=%23DAE9FD&ratio=4.5&isBackgroundTested=false&algo=Rgb&distanceSort=asc However with the current tailwind generation logic, setting another text color would probably also affect the background color. Other sections that I found to have lacking contrast: - The Class symbol - The Variable symbol (also in dark mode) - The Interface symbol (also in dark mode) - documentNavigation links - symbolSubtitle, like "extends" - The word "Class" There's maybe more, but I haven't seen all of the possible documentation. More info: https://www.w3.org/TR/WCAG22/#contrast-minimum & https://www.w3.org/WAI/WCAG22/Understanding/contrast-minimum.html