I wrote a little DF to display various device attributes. But I can't figure out how to determine the color depth. The Edge 130 has 2 colors (1 bit). Some have 4 bits. Some have 6. And some have 16 bits (64K colors). Any method to retrieve that?

I wrote a little DF to display various device attributes. But I can't figure out how to determine the color depth. The Edge 130 has 2 colors (1 bit). Some have 4 bits. Some have 6. And some have 16 bits (64K colors). Any method to retrieve that?
