Akai MPC X User Manual page 284

Use the Single Pad/All Pads select to determine whether you are setting the color for a Single Pad or All Pads.
Tip: To quickly assign that color to all pads in the program, press and hold Shift while tapping a color button.
Use the color buttons to select which color you are assigning.
Tip: To select the color button corresponding a specific pad's color, press and hold Shift, and then press the
pad or tap it on the screen.
Press a pad on your MPC hardware or tap it on the screen to assign the selected color to it.
To make the current pad color settings the defaults for all programs on the same type (e.g., drum programs,
keygroup programs, etc.), tap Make Default. In the window that appears, tap Do It to confirm your choice or Cancel
to cancel.
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