How do I change the font, size and color of the text in the description?

The font, size and color of the description text for your objects or models is linked to the settings in your web profile. It is the web profile settings that determine the font, size and color of the published material. You can also choose to use the web profile settings directly in the "Description" tab of an object's properties. This means that those who model in your repository will write their description texts with the same settings as in the web profile and to see what the end result will look like.