Does anyone know how to remove the colour overlay which is automatically over the module icons in Canvas Teacher. There is an option to remove this when accessed through the web but not on the App. Does anyone even know why Canvas defaults to having a colour overlay? We go to some lengths to choose a nice picture and then Canvas automatically makes it less good by putting a colour overlay on top. I find it difficult to understand why they do this. Anyway, I digress, how do I choose to not have this on the Teacher App?