A guide on how to unlock the ability to change lighting color and brightness in Happy Home Paradise DLC.
Changing the Lighting
Once you’ve unlocked the Café and Restaurant, which requires designing 12 vacation homes, you’ll also have access to a new tab in decorating mode that allows you to change the brightness and hue of the room’s lighting. Prior to this upgrade, you’ve only been able to turn off the lighting or change it to a warm or cool setting.
With the new lighting upgrade you can change it to any color of the rainbow and also adjust its brightness. You can do this to a room even if there aren’t any light fixtures on the ceiling.