You can update the header images for your System forms by going to Custom Forms.

Select any of the Green Stubs:

Each of these have the option to add an additional Logo or image:

1. Alternate logo can be added here Note: if left blank the logo in Settings > Look and Feel will automatically be displayed
2. Alternate Header image can be added here (Recommended sizing is 1920 x 288px or 1600 x 288px) Note: if left blank the image in Settings > Look and Feel will automatically be displayed

You can update the header images for your System forms by going to Custom Forms.

Select any of the Specific Custom Form.

Go to Custom Form Settings in this article Creating Custom Forms