The DeepPurple skin draws ticks for FALSE values. This issue affects TsCheckListBox and skinned grids, and probably other components as well.
The attached image shows the same data with WEB and DeepPurple skins, the admin user type on the top row has TRUE values for all the bit fields being displayed.
Perhaps the link is wrong? I re-downloaded the file, deleted the old skin from my program and readded it (copy/pasting the path to ensure it is correct) and then ran it – same results. The other confirmation that I've loaded the new skin is that the case on the name has changed (previously DeepPurple, now deeppurple on this new one).