If I put body background image in mystyle it does not work instead of color.css
If I put the userdefined module icons in mystyle it does not work (extra menu and copy of simpl_pages) instead of color.css
Put all those things in the mystyle.css file and email it to me. Then I can tell you what you are doing wrong. I KNOW it works. I’ve done all those things, using colors theme and even your background image on my own site.