Removing tab pages

[merco]

I had to remove pages during execution... and put them back...

but _drawerItemRects seems to be dirty

preProcessIcons

[TheDomo]

I had the same problems like you. I modfied the following things:

MaterialDrawer.cs

MaterialForm.cs

And call it from the Form:

Maybe it will not the best solution but it works perfectly with correct possition and all icons.