You can change the colors of your card by clicking/tapping on "edit card colors", this will bring up our color picker. You can choose your own colors by clicking on the circles and testing out different colors. Once you have your card colors set, click on the blue checkmark. If you want to go back to our preselected colors, click on the red X. See the screen shot below as a reference when you personalize your card.
Please contact firstname.lastname@example.org if you have any other questions. Thanks for using Red Stamp!