Cleaning the FilterContainer class
Adding missing license header to file
Moving a few color conversion methods
Adding missing XML doc comments
Cleaning the Utilities class
Cleaning filter control class files
Cleaning up Hue and Scale filter controls
Refactoring paint operation classes to remove the OperationCursor overriding
Removing unnecessary constructor and marking some fields as readonly
Cleaning the BasePencilPaintOperation class
Cleaning up paint operation classes
Making clipboard operations give focus to the image panel
Changing the way the selection paint operation paste behaves
Finishing to clean up alerts on the paint operation class files