When you create a project, a project palette group is associated with it. The project palette group is displayed in the tool palettes set when the project is set current.
Each project has a specific tool palette group (ATC) associated with it. Depending on how you created the project, the tool palette group can be created and displayed in different ways.
For a new project, the project tool palette group is by default empty, unless the project settings are pointing to an existing palette group.
Selecting the project tool palette group