Mixplorer Themes. Neon mixplorer themes. Now go to miui theme download you will an mtz file.
Go to mixplorer go to browse your theme file open it and copy everything except description xml file. Open that mtz file delete everything except description xml file. Click here zero v12 miui theme download zero v12 miui.
Skins for v5 x will work in v6 x but might not be completely compatible.
Flatui dark skin for musicbee. Minimalistic library icons. Open that mtz file delete everything except description xml file. It supports android 2 0 eclair i hope you enjoy it.