As of the 2022b release, you can use themes to save your plot settings. This is especially useful if you need consistent looking plots, for example, for a presentation, publication, or collaboration. The theme settings are located at the top of the properties window. You can either use the predefined plot themes or define your own themes.
You can read more about the themes by searching for Plot Themes in the online help. The online help is accessed from within Thermo-Calc in the Help menu > Online Help.