It seems that some resources are broken. Test it with the lastest Dolphin from Github and if the problem is still there create an issue on Github.
Gdiplus is pretty awesome. I have made a chess notation tool with it some time ago:
- Render chessboard (with different styles)
- Render pieces (with different styles)
- Drag and drop pieces on the chessboard
- Lot of visual effects on the chessboard
If you want something even more cool take a look at this (4 parts) tutorial by Andy Bower: