You're supposed to drop them into your user config directory, which is accessible to you without admin priviledges. It might be that you still need to create the palettes directory there.
(User config directory: Edit -> Preferences -> System: User config)
You're supposed to drop them into your user config directory, which is accessible to you without admin priviledges. It might be that you still need to create the palettes directory there.
(User config directory: Edit -> Preferences -> System: User config)