.NET applications (nLite1.4.9.3) may still suffer from checkbox wiggle flicker

A follow-up-ticket of CORE-13278
We addressed that problem by 0.4.13-dev-1194-ga40331b for all native apps as far as I tested (but broke comctl32 v6 tests).
But for .NET applications the flickering effect when hovering with the mouse over a checkbox does still persist. So eventually we need to find a better solution.

Reproduction steps

• install .NET2 SP2 from rapps
• reboot
• install NLite 1.4.9.3 http://www.nliteos.com/download/nLite-1.4.9.3.setup.exe
• start nLite and continue up to settings importing screen

xpsp3_ok.webm
0.4.13-RC-17-gfa70635_affected.webm
0.4.13-RC-17-gfa70635_affected.log (nothing is logged upon wiggling)

Question is, which vector does .NET use to draw checkboxes?