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Docs in DeveloperHub can have two themes:
Light theme
Dark theme
It is possible to set the default theme for readers and to show a toggle for your readers to enable them to change the theme to their liking.
Setting the theme
To change the default theme for readers:
Open Project Settings → Customisation.
Choose the theme.
Click Save changes in the top menu.
Code Theme
We suggest using the light code theme when using the light theme.
Show Theme Toggle
To show a theme toggle for readers:
Open Project Settings → Customisation.
Check Show Theme Toggle.
Click Save changes in the top menu.
Light Theme

Dark Theme

Modifying the theme
To modify the theme, update CSS Variables as needed, or add your own Custom CSS. A global .dark-mode CSS selector is added on document.body when dark theme is applied.
Last updated on Jun 23, 2026
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