I know you can download custom themes that have been created by others and install them using MyMenuify, and you can create custom themes from scratch using a base theme pack with ThemeMii, but is there a way to make simple color edits to existing themes?
Specifically, I'd like to either change the background of Slaz0r's DarkWii to be darker (similar to the later DarkWii-darkblue4.3U.csm), or change the outline highlight in DarkWii-darkblue4.3U.csm to be light blue as in Slaz0r's DarkWii. I know I could do this if there is a way to unpack mym/csm files into their individual components for use with ThemeMii, but I couldn't find any way to do it.
Specifically, I'd like to either change the background of Slaz0r's DarkWii to be darker (similar to the later DarkWii-darkblue4.3U.csm), or change the outline highlight in DarkWii-darkblue4.3U.csm to be light blue as in Slaz0r's DarkWii. I know I could do this if there is a way to unpack mym/csm files into their individual components for use with ThemeMii, but I couldn't find any way to do it.