User:DC123456789

Sandbox

Drawing coloured emblems on GIMP

• Open the coloured emblem file
• Decompose into RGBA layers
• Go back to RGB mode
• For red layer, fill completely with colour 1
• For green layer (if not completely white or same colour as red layer):
  • Duplicate
  • On original layer, Ctrl+A -> Ctrl+C (Copy whole layer)
  • On duplicate layer:
    • fill completely with colour 2
    • right click -> Add Layer Mask
    • Make sure layer mask is selected (border is on left thumbnail)
    • Ctrl+V -> Right click pasted layer -> Anchor Layer
    • Right click layer -> Apply Layer Mask
    • Delete/hide original layer
• For blue layer (if not completely grey):
  • Duplicate twice
  • On duplicate layer #1:
    • Colours -> Curves -> set to (0, 0) to (127/128, 255)
    • Colours -> Linear Invert
    • Ctrl+A (Copy whole layer)
  • On a new black layer (this will generate "blue #1"):
    • right click -> Add Layer Mask
    • Ctrl+V -> Right click pasted layer -> Anchor Layer
    • Right click layer -> Apply Layer Mask
    • Delete/hide duplicate layer
  • On duplicate layer #2:
    • Colours -> Curves -> set to (127/128, 0) to (224, 255)
    • Ctrl+A (Copy whole layer)
  • On a new white layer (this will generate "blue #2"):
    • right click -> Add Layer Mask
    • Ctrl+V -> Right click pasted layer -> Anchor Layer
    • Right click layer -> Apply Layer Mask
    • Delete/hide duplicate layer
• Arrange blue #1 > blue #2 > green > red layers
  • Merge them
• Copy Alpha Layer
• On merged blue/green/red layers:
  • right click -> Add Layer Mask
  • Ctrl+V -> Right click pasted layer -> Anchor Layer
  • Right click layer -> Apply Layer Mask