Time Frequency is coded in COFFEE. This means that it doesn't take advantage of the new type of user interface used in the Attribute Manager. More important than that, it could be prone to a COFFEE bug that could hang Cinema4D if a user tries to edit the shader parameters before the material thumbnail gets updated. Since the display of the material thumbnail got a tremendous speedup in Cinema4D 8.5, this problem is not so worrying in this version. But, on prior versions, the user must take care not to press Edit... before the material thumbnail is fully refreshed. You have been warned! ;-)