How to tell browsers that your site supports color-schemes
Over the past few years, a new user preference made it into the
group of things "that change how a website looks" – yes, I'm talking
about color themes. "How to implement dark mode on a website?" was
one of the most important topics in 2019.
Source: How to tell browsers that your site supports
an article by Stefan Judis.
Using the brightness() CSS Filter to generically highlight Content
So it seems I have to pay better attention to CSS standards as I
just realized that you can quite easily use CSS Filters to apply
useful effects for generic control behaviors. Sure, I remember
filter merely from the old, evil IE6 days to handle things like
shadows and opacity, but it looks like the filter properties have
migrated into the CSS mainstream with two now widely used and
accepted filter operations that have quite a few useful filters
Source: Using the brightness() CSS Filter to generically highlight
an article by Rick Strahl.