Use 2D transforms and mat3, update shaders
Signed-off-by: Karang <arthur.hennequin@free.fr>
Merge pull request #2177 from Karang/master

Use 2D transforms and mat3, update shaders
Widget clicking

Signed-off-by: Walker Crouse <walkercrouse@hotmail.com>
Remove debug code

Signed-off-by: Walker Crouse <walkercrouse@hotmail.com>