Looking for tutorial

[Gisela]

Hi there 

All the tutorials I found describe where to find which files ans how to change very specific parts of a theme.

Are there any more general tutorials, or do I have do learn PHP/CSS for this?

For example, I'm trying to change the transparency of some part of the forum-displa but don't know where to start or where to look!

[.m.]

learn html & css ;
here is a basic elements guide for an older version of MyBB - you can take it as a base ..