Update mask fill colour when upgrading from previous IO version
Update mask fill colour when upgrading from previous IO version

Both colour settings are now updated when upgrading from an IO 2.0 installation with default colour settings

Glutanimate/image-occlusion-enhanced,Glutanimate/image-occlusion-2-enhanced,Glutanimate/image-occlusion-2-enhanced,Glutanimate/image-occlusion-enhanced,Glutanimate/image-occlusion-2-enhanced,Glutanimate/image-occlusion-2-enhanced,Glutanimate/image-occlusion-2-enhanced