Themes are only available in the new lesson editor.
Why use a theme?
A theme instantly gives your slides a consistent look and feel. With one click, you can apply the same styling; fonts, colours, and component accents to the current slide or to all slides in the lesson.
Benefits:
Consistent, professional design across your lesson
Faster formatting (no manual styling per slide)
Interactive components (e.g., Hotspot, Spinner) automatically adopt the theme style
Note: Themes change the visual styling. Your text, images, and slide content stay exactly where they are.
How to apply a theme
Open a lesson in the new lesson editor
2. In the right-hand Slide panel, click Theme.
3. Choose a theme (e.g., Warm).
4. You have several options when applying a theme:
Apply to a single slide: Only the currently selected slide gets a theme.
Apply to multiple slides: Select several slides at once, then apply the theme.
Apply to whole lesson: Turn on the setting ‘Apply to all slides’ and select a theme
5. Your whole lesson, including interactive components like Hotspot and Spinner, now adopts the selected theme.
Tips & good to know
Overwrite customisations: Settings you already customised on your slides will not change, unless you turn on ‘Reset’.
You can switch themes at any time. To revert, open Theme again and select Default or pick another theme.
Prefer to style just one slide? Leave All slides off and apply the theme to the current slide only.