Are there any threads or places that may have information on like sizing limits, stylistic issues and etc, kinda like the one thread/topic in the CWs forum speaking about the specifics of making CWs?

I hope that makes sense ;w;

Those details are on this page found via the Upload New button on the Custom Overlays page c:

Omg thank you LOL I shouldve looked there but was lookin in all the wrong places xD