@suzanne_figures ,
This is not currently possible. More information can be found in these two threads:
I will add that the Canvas Apps use the Canvas REST API to communicate and the ability to control the color overlay was just added with the April 20, 2019, update. Before then, it could only be changed through the web interface. In some cases, the settings from the web carry over, but not in this case.
The App was last updated a month ago, which was before the ability to set the overlay through the API was available. I don't know whether that functionality will be added in the future or not.
This discussion post is outdated and has been archived. Please use the Community question forums and official documentation for the most current and accurate information.