Customize: Add instructions for changing fonts

docs/customize/look-and-feel/font.md

@@ -0,0 +1,61 @@
+# Change the font
+
+You might also be wondering: *How do I change the font so I can make my instance adopt my institution's theme?*
+There are different ways to add fonts to your InvenioRDM instance. You can either include Google Fonts by adding a link or add fonts locally. In this guide, we'll cover the steps to add fonts locally.
+
+## Step-by-step
+
+### 1. Add the font files
+
+In your instance's `assets/less/site/fonts` directory, add the font files you want to use. For example, if you want to use the "Figtree" and "Open Sans" fonts, you would add the following files:
+
+```bash
+./assets/less/site/fonts/Figtree.woff2
+./assets/less/site/fonts/OpenSans.ttf
+```
+
+### 2. Define the font faces
+
+In `assets/less/site/globals/site.overrides` add the following code to define the font faces:
+
+```less
+@font-face {
+  font-family: "Figtree";
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: url("../fonts/Figtree-Regular.woff2") format("woff2");
+}
+
+@font-face {
+  font-family: "Open Sans";
+  font-optical-sizing: auto;
+  font-style: normal;
+  font-weight: 400;
+  src: url("../fonts/OpenSans.ttf") format("truetype");
+}
+
+```
+
+### 3. Use the fonts in your site
+
+To use the fonts in your site, you can use the following in your `assets/less/site/globals/site.variables`:
+
+``` less
+/* Fonts */
+@fontName: "Figtree", Arial, Helvetica, sans-serif;
+@pageFont: "Open Sans", Arial, Helvetica, sans-serif;
+@headerFont: @fontName;
+```
+
+### 4. Build the assets
+
+After making the changes, build the assets by running the following command:
+
+```bash
+invenio-cli assets build -d
+```
+
+> **Note**: When you add the fonts while using `invenio-cli assets watch`, you need to cancel the process, build assets and start the watch again to avoid any issues.
+
+After following these steps, your InvenioRDM instance should now use the specified fonts, reflecting your institution's theme.

mkdocs.yml

@@ -53,6 +53,7 @@ nav:
           - Change logo: "customize/look-and-feel/logo.md"
           - Change templates: "customize/look-and-feel/templates.md"
           - Change theme: "customize/look-and-feel/theme.md"
+          - Change font: "customize/look-and-feel/font.md"
       - Authentication: "customize/authentication.md"
       - Sending emails: "customize/emails.md"
       - Search: