Help is here.

Can I customize the background color of my Sticker?

Yes. Here's how:

  1. Select the Color tab in the left panel, to change the existing background color of a Sticker.
  2. Change the sticker's background color by:
    • Selecting one from the color palette
    • Selecting via the Eyedropper Color Tool
    • Specifying a custom color or adjust the CMYK values
    • You can also choose to have a transparent background by choosing the No-Color option, i.e. the white circle with a redline in it.