Are the dijit themes included with the default dijit installation (tundra,soria,nihilo) 100% complete and cross-browser compatible? I noticed that soria and nihilo in particular use a lot of pngs, and am wondering how ie6 would handle these two themes. I am running Ubuntu Linux, and am therefore unable to test the themes myself. I need to use a theme which is completely cross-platform, as many Windows users visit my website. Thanks in advance!