Just open the app on your Mac.
The iPhone will instantly recognize
it if they're on the same network.
No need to mess around with IP addresses or port numbers.
RoomColors for your Mac lives in the status bar, and doesn't get in your way.
The application illustrates the practicality of using your iPhone to control the lighting in your home. Ideally you'd have some sort of WI-Fi connected light bulbs. But I'm using the Macs displays as substitutes for light bulbs.
You pick the color to be displayed full screen on your Mac
and adjust the brightness of the display.
What to use it for?
You can use it as a mood light.
Create the mood you want in your room by lighting it with a certain color.
You can use it as a soft box for photography
Shoot your subject under colored light.
With a long exposure, mix colors.