Can I make just slight modifications to the existing skins? I like the layout and functionality of vector (or whichever one it is that matches most Wikipedias?) but I want to give it some themed colours to suit our own
wikiCan I locate the file for that skin (where?) and just change a few he codes? Or is it more complicated than that?
Do not touch installation files for this. That would complicate your upgrades.
Instead, generate override stylesheets on the wiki, as described in Manual:Interface/Stylesheets. You would create MediaWiki:vector.css or MediaWiki:vector-2022.css (depending on your vector skin) with the styles to override, usually just colors. You'd have to copy the entire selector to override and modify the colors as you wish, removing other rules that you don't want to modify.
Note that changes may not be applied immediately due to caching. You better try it yourself live on the page by using the browser's development tools, or in your personal stylesheet and using the preview button.
