I need to make a button that will turn activated when pressed, but that cannot be pressed again

Our smart home interface has customizable buttons that activate moods like, morning, night, or away. As of now, if the user presses a mood button it changes color to signal that this mood is now active. However, this mood cannot be turned off, the user will have to switch to another mood and the button does not work as an on/off toggle.

How do I shape the button in order to signal that it is not re-clickable