The basics·Episode 13·2:01

Change it once, everywhere

On five of the skeleton's pages, the Back button is an instance of one component, Back button. Replace the Back made by hand in episode 11 with that component, change the component once, and six pages change with it. Link the component's colour to the project colour Primary, change Primary under Project › Design, and everything in the game that uses it changes. Finally, add a font, and the game's text is set in it.