I am beginning to create new email templates from the starter templates Marketo provides. I started with Limon, Skeleton and Snow Bunny. After I edited them to change colors/logo/overall branding, I sent tests to several of my accounts for rendering. They all render fine in Outlook and on the desktop email site. Limon and Snow Bunny incorporate background images with copy and buttons on top of them. These are not rendering on my phone (Android using Gmail app). They do show on my coworkers phone (Apple using mail app).
Has anyone else come across this issue? Is there a fix for the background images to appear across all platforms?