Fix GaussianBlurEffect icon, and don't do anything if radius = 0.
Fix GaussianBlurEffect icon, and don't do anything if radius = 0.

Mailaender/Pinta,Fenex/Pinta,PintaProject/Pinta,Mailaender/Pinta,Fenex/Pinta,PintaProject/Pinta,jakeclawson/Pinta,PintaProject/Pinta,xxgreg/Pinta,jakeclawson/Pinta