Origin Templates

https://www.originlab.com/doc/Origin-Help/Graph-Template-Gallery

I. Working with Templates:

I.1. Save a graph as Theme:
on Graph
File --> Save Template as

II.2. Use a Theme:
on workbook
Plot--> Template Library

II. Working with Themes:

II.1. Save a graph as Theme:

on Graph

Right click --> Save Format as Theme

II.2. Use a Theme:

on Graph

Preferences --> Theme Organizer (F7)