Keys for painting objects

* Not in ImageReady
§ ImageReady only

Result	Windows	Mac OS
Eyedropper tool	Any painting tool + Alt or any shape tool + Alt (*except when Paths option is selected)	Any painting tool + Option or any shape tool + Option (*except when Paths option is selected)
Select background color	Eyedropper tool + Alt-click	Eyedropper tool + Option-click
Color sampler tool*	Eyedropper tool + Shift	Eyedropper tool + Shift
Deletes color sampler*	Color sampler tool + Alt-click	Color sampler tool + Option-click
Sets opacity, tolerance, strength, or exposure for painting mode	Any painting or editing tool + number keys (e.g., 0 = 100%, 1 = 10%, 4 then 5 in quick succession = 45%) (*When airbrush option is enabled, use Shift + number keys)	Any painting or editing tool + number keys (e.g., 0 = 100%, 1 = 10%, 4 then 5 in quick succession = 45%) (*When airbrush option is enabled, use Shift + number keys)
Sets flow for painting mode*	Any painting or editing tool + Shift + number keys (e.g., 0 = 100%, 1 = 10%, 4 then 5 in quick succession = 45%) (*When airbrush option is enabled, omit Shift)	Any painting or editing tool + Shift + number keys (e.g., 0 = 100%, 1 = 10%, 4 then 5 in quick succession = 45%) (*When airbrush option is enabled, omit Shift)
Cycles through blending modes	Shift + + (plus) or - (minus)	Shift + + (plus) or - (minus)
Fills selection/layer with foreground or background color	Alt + Backspace, or Control + Backspace†	Option + Delete, or Command + Delete†
Fills from history*	Control + Alt + Backspace†	Command + Option + Delete†
Displays Fill dialog box	Shift + Backspace	Shift + Delete
Lock transparent pixels on/off	/ (forward slash)	/ (forward slash)
Connects points with a straight line	Any painting tool + Shift-click	Any painting tool + Shift-click

†Hold down Shift to preserve transparency