Docs · Content

Themes and appearance

Choosing a theme

Themes has six designs:

Theme	Best for
Classic	Any niche: image cards, sidebar, table of contents
Magazine	Busy sites with lots of articles
Minimal	Personal and expert blogs, long reads
Reviewer	Reviews and buying guides: coloured pros, cons and verdict boxes
Wellness	Health, parenting, lifestyle: soft and calm
Nightfall	Tech, gaming, entertainment: dark first

Click Preview & customize to see your own site in the theme before visitors do. Change the accent colour, header style, site name and icon, sticky menu, cards, corners, page width and more, on desktop, tablet or phone sizes. Save keeps your choices; Activate makes the theme live.

The Themes page with theme cards, each with Preview & customize and Activate — Themes. Preview any theme with your own content before you switch.

Customize Classic: accent colour, header, site name and icon and article card options next to a live preview — Preview & customize: every change shows in the live preview straight away.

More themes

Find more themes at fastcms.net/themes. To install one:

Download the theme's .zip file. Don't unzip it.
In Themes, click Upload theme and choose the zip.
It appears with the other themes, marked Uploaded. Click Preview & customize to try it, then Activate.

Uploading a newer version of the same theme updates it and keeps your settings. You can delete an uploaded theme you're not using with the bin button on its card. fastCMS updates never change uploaded themes. Only install themes from sources you trust.

Fonts and text size

Settings → Appearance sets the headings font, body font and text size for the site, and a separate font for the admin, with live previews.

Settings, Appearance tab: the site icon and site fonts with a live preview — Settings → Appearance.

Dark mode

Visitors can switch between light and dark with the button in the corner. Each theme sets what new visitors see first.

Editing theme files

If you change a built-in theme's files directly, updates will replace your changes. Copy the theme's folder to a new name in themes/ first and edit the copy.