I&#x27;m on Linux with Xfce.  I have tried and failed to get a dark theme working.  It&#x27;s difficult to match across toolkits.<p>I&#x27;ve had web browsers that default to white screen flashing on new tabs, and most don&#x27;t respect your native theme.<p>My current workaround]in Firefox is to disable background images, set default foreground&#x2F;background and link colours.  Set a default font, and ensure font sizes don&#x27;t fall below a certain size.<p>Some text inputs have a dark background and a dark font. Which makes things very difficult.  I&#x27;m typing blind.<p>Another issue is that many designs use background images where you would expect foreground placement.  For example  Instagram doesn&#x27;t work for me.  Slack is usable, but some image previews are lost.  Other sites that rely upon imagery for navigation can pose a problem.  The compose window in Gmail, I have to use mystery meat navigation to work out each button&#x27;s function.  Which is quite poor.<p>I&#x27;ve tried setting my own stylesheets in browsers where you can, but it&#x27;s easy to break layouts.<p>Obviously accessibility is still overlooked by many site designers.<p>I also don&#x27;t like being stuck in one browser, so a better cross application solution is preferable, rather than site specific fixes.