Not a huge fan of the new fangled site layout for newly created SharePoint Online sites, but it is growing on me. One feature I particularly like is the ability to view PowerShell files, complete with color-coding, directly in the browser. Can't edit the file in the browser (yet) but just being able to view it is surprisingly helpful. Doing the same in classic mode just prompts to download the file.
Is this something I can enable in 'classic mode' using SharePoint Designer, etc?
FWIW, it's tricky to Google for an answer because all I get are articles about using PowerShell to upload files. Probably some magic search query to get the answer but my Google Fu has failed me thus far :(