Actually my post wasn't to ask for help.
It's to report a fundamental change in Kodi's next major update which makes WindowBlinds completely incompatible with Kodi. It's not any particular skin. This issue affects ALL WindowBlinds skins.
FYI: XMBC/Kodi has always been fully skinnable (glass frames and titlebar) with WindowBlinds since even the old XMBC days. It's not the skins that are the problem, it's WindowBlinds being able to work with apps with a DX11 canvas (Kodi's next release uses a DX11 canvas, instead of old fashioned DirectX9.x).
Surely, I can't be the first person on earth who uses Kodi and WindowBlinds. From the response I've seen so far... it kinda does.