I am currently using MIT AppInventor to build an app
In the app, I wish to swap the background image with a colour during runtime using blocks. Is this possible or do I have to make a new blank image with a background colour?
I would make a blank image right away but I am hesitating to do so because the app is quite heavy with >20 images, 3 screens and hundreds of blocks.
Um.. Awkward moment here, but I found an answer
So I'll just keep this page for reference.
Setting background image to " " does the job. Without showing any error.
*facepalm*