I've created a dark theme for SAS Studio versions 3.8, 3.81, and 3.82. I also created a new light theme that's not too bright. They work via the Stylus browser extension, available for Chrome, Edge, and Firefox. Here's a screenshot of the dark theme: I'm not able to test if the themes work for SAS OnDemand for Academics (SOA), but if SOA runs on SAS Studio 3.81, then there's a decent chance it will work. I created a separate post about my themes with installation instructions here: https://communities.sas.com/t5/SAS-Studio/Custom-themes-for-SAS-Studio-3/m-p/959552 And the themes themselves live in my github repo here: https://github.com/dmuenz/sas-studio3-themes
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