In Heybase, You have the option to customize colour theme for a room, so that you can set room theme as dark or light.
To select default colour theme:
Click on the three-dot icon located on the upper right corner of the editor.
From the dropdown menu, select "Room Settings". This will open the room settings pop-up.
In the pop-up, you will find a dropdown menu to select the colour theme for the room.
By default, the colour theme is set to "System", which adjusts the room theme based on the guest's system or browser preference.
If you prefer a fixed light or dark theme for the room, you can choose the respective option from the dropdown menu.
Once you have selected the desired color theme, save the changes.