4T

Here are some handy brush mode shortcuts:

The Essentials

• Shift-Alt-N = Normal
• Shift-Alt-M = Multiply
• Shift-Alt-O = Overlay
• Shift-Alt-S = Screen
• Shift-Alt-C = Colour
• Shift-Alt-U = Hue

The Complete List

• Shift-Alt-A = Linear Burn
• Shift-Alt-B = Colour Burn
• Shift-Alt-C = Colour
• Shift-Alt-D = Colour Dodghe
• Shift-Alt-E = Difference
• Shift-Alt-F = Soft Light
• Shift-Alt-G = Lighten
• Shift-Alt-H = Hard Light
• Shift-Alt-I = Dissolve
• Shift-Alt-J = Linear Light
• Shift-Alt-K = Darken
• Shift-Alt-L = Hard Mix
• Shift-Alt-M = Multiply
• Shift-Alt-N = Normal
• Shift-Alt-O = Overlay
• Shift-Alt-P = Airbrush Mode
• Shift-Alt-S = Screen
• Shift-Alt-T = Saturation
• Shift-Alt-U = Hue
• Shift-Alt-V = Vivid Light
• Shift-Alt-W = Linear Dodge (Add)
• Shift-Alt-X = Exclusion
• Shift-Alt-Y = Luminosity
• Shift-Alt-Z = Pin Light

You can also cycle through the modes using Shift-Alt-Plus (forward) and Shift-Alt-Minus (backward).