Coordinated adjustment of display brightness

A computer-implemented method and includes identifying a change to be made in a brightness level of the light-generating appliance, the identifying of the change being effected by an input external to the light-generating appliance; determining, with a component of the light-generating appliance and in response to identifying the change to be made in the brightness level, a level of change to be made in a nonbrightness-related lighting output parameter of the light-generating appliance, to maintain a level of user stimulating light for a user visually exposed to the light-generating appliance, the level being equal as before the change in brightness level is made and after the change in brightness level is made; and changing the brightness level of the light-generating appliance according to the identified change in the brightness level, and changing the nonbrightness-related lighting output parameter based on the determined level of change to be made in the nonbrightness-related lighting output parameter.