The theme manager is the collection of themes in your current project. You can add themes into your project from the Theme Library.
Opens a create theme window, the options in the window will vary depending on what item in the theme manager you had selected.
Copies the theme of the item you have selected in the theme manager to the clipboard so it can be pasted somewhere else in the project or to a different project all together.
Pastes a copied theme from the clipboard to the theme selected.
Deletes the selected theme from the theme manager.
Import a theme from another .GUI file.
Deletes themes in the theme manager that are not assigned to GUI objects.
Automatically imports button images into themes. To do this you must select a folder full of image files, names with each button ending in '_off' and _on'. E.g. somebutton_off.png, somebutton_on.png
Shows or hides the Theme Library.