Shadowforge 1.3

Shadowforge 1.3 introduces a major update to animations and vector drawing.

• Import an animated gif and control it's frames with the arrow keys.
  
• Apply a shader to an imported gif or to a vector.
  
• Made gameboy shader apply transparency to transparent backgrounds.
  
• Added black and white frames icon for loading the gif animation and making the gif animation get applied with shaders. This puts it above your brush drawing.
  
• Added purple frames icon for loading a gif animation and drawing on the sprite sheet.
  
• If you cancel an open file operation with gif animations, then you must press CTRL + Delete to use them again.
  
• Bugfix: Fixed applying shaders on opening a normal image file.
  
• Bugfix: Fixed the frame number text when applying the gameboy shader.