Sprite Mask still only works with the square brush. You turn it on by clicking on the little house icon and then left clicking on the surface.
Shadowforge 1.7.3
Blur Mix is back. Opacity palette is back. You can now save the image with or without transparency. This fixes the issue with opacity saving as opacity. Replaced Alpha Up with Save Image. Replaced Alpha Down with Save Transparent Image.
Mirroring is now finally working
Mirroring is now working like it should. It took some time to get the math right, but it's working now.
Shadowforge 1.7.2
Changed "Blend Sprite to Black" to "Saturation Up" Changed "Blend Sprite to Sprite" to "Saturation Down"
Made it possible to change color and saturation on the right UI without pressing on the "G" button first.