Board Thread:Support Requests - Designing Your Wiki/@comment-44481222-20200125135635/@comment-44481222-20200125192722

I don't understand it at all. I'm new to these things and I just want to change the color and round the edges of my already existing infobox. And I want my infoboxes to be in other colors on every season of my page, just like on the page i've linked (RuPaul's Drag Race - Season). I also want to know how to edit the infobox in source editor, cause maybe that's what I need to know.