Several recent versions of the app changed the way colors is set for the Bedside Lamp. Not only they are hardly represent actual COLORS of the predefined color presets in the color panel, they are also extremely washed out and just look really bad and unnatural.
Check the most obvious differences on what green and blue are now and what they should look like (and actually have been looked in the earlier versions):
Do you see some kind of green at all? Previously the app was able to set nearly perfect deep natural true colors using these presets. Thus, there are no any constraints of the lamp itself, it's all about the app.
So, developers, PLEASE - bring back the REAL COLORS PRESETS to the app.