Canon PowerShot ELPH 300 HS User Manual page 72

Adding Effects and Shooting
Color Swap
You can swap one color in an image for another when recording it. You can
only swap one color.
72
Choose Y.
Follow Steps 1 – 2 on p. 64 to choose Y.
Press the n button for more
than one second.
The unchanged image and the Color Swap
image will alternately display.
The default setting is to change green to
gray.
Specify the color to be swapped.
Position the center frame so it is filled with
the color you want and press the q button.
The specified color will be recorded.
Specify the target color.
Position the center frame so it is filled with
the color you want and press the r button.
The specified color will be recorded.