For Better UI 2.0 see here.

Before installation

Make sure you have Better UI as well as TextMesh Pro installed in your Project.

Installation

1. Navigate to "Assets/TheraBytes/BetterUI" in the project window.
2. Double click the "BetterUI_TextMeshPro" unitypackage.
3. Import all files.
4. You may delete the "BetterUI_TextMeshPro" unitypackage afterwards.

After installation also TextMesh Pro components can be made Better.