injected css includes a variable that interferes with sites' stylesheets

[joejenett]

in content_styles.css, the --bg: #eee; variable is overriding variables defined within websites' own stylesheets. I experienced the problem on 3 different sites in one day and disabling the extension fixed the problem on all three of them. I've disabled FediAct for now.

[pacanukeha]

this issue is visible on https://worldle.teuteuf.fr/ when it tries to display svgs of neighbouring countries.