Honeywell VisionPro thermostats such as the TH8110U1003 feature a 10 second backlight display. This means that after you touch anything on the thermostat, it will light up and stay lit for 10 seconds before going back to normal. The bright green light will stay lit long enough for you to do all of your programming, and then turn off, allowing the unit to draw less attention on the wall.
Thermostats and Honeywell thermostats can be found at www.supplyhouse.com