In other words, the device will automatically adjust the color on the screen based on the light in the room. Sounds great - and it is: you turn off the lights, and the screen goes dark so that you're not blinded when you're trying to sleep. You open the window shades and it adjusts so the screen always looks great.
Of course, this sensor and the automatic changes raise halachic issues for the Shomer Shabbat consumer. You can always just turn the feature off (see here). But I'm wondering: does the halachah require people to disable such a feature? It seems to be a psik reisha (an immediate, direct response) to a change in light. And it also seems to be "nicha lei" - I do like my screen to look its very best. But do I care enough? I imagine that at some point these sensors will become so ubiquitous that we may not even have the option of turning them off (which will necessitate someone developing a Shomer Shabbat version of whatever Google Home operating system these things use...)
What do you think? Is it a halachic issue? A chumrah?
