Hello,
Minor bug, but for those of us who prefer the Basic (Aero Lite) theme over the standard Windows 8 theme, the taskbar becomes completely transparent when used in conjunction with Start8.
A workaround exists though: The 'Disable Taskbar Translucency' checkbox just needs to be un-ticked then re-ticked. This permanently fixes the issue (not sure about changing too/from the standard and High Contrast themes though).
Should be patched though to work out the box, but at least there's a working workaround.