Documentation

Dockerfile

@@ -61,7 +61,9 @@ RUN \
   if [ "${WITH_PLUGINS}" = "true" ]; then \
     pip install --no-cache-dir \
       "mkdocs-minify-plugin>=0.3" \
-      "mkdocs-redirects>=1.0"; \
+      "mkdocs-redirects>=1.0" \
+      "pillow>=9.0" \
+      "cairosvg>=2.5"; \
   fi \
 && \
   apk del .build \

docs/setup/setting-up-social-cards.md

@@ -118,15 +118,18 @@ The following configuration options are available:
 
 #### Dependencies
 
-Two Python packages are installed alongside Material for MkDocs to generate the
+Two Python libraries must be installed alongside Material for MkDocs to generate
-social preview images, both of which are based on the [Cairo Graphics] library:
+the social preview images, both of which are based on [Cairo Graphics] – 
+[Pillow] and [CairoSVG]:
 
-- [Pillow] – Python imaging library
+```
-- [CairoSVG] – Converter for `*.svg` files
+pip install pillow cairosvg
+```
 
-The [Docker image] comes with all dependencies pre-installed. If
+Both libraries are built with native extensions which need to be installed as
-you don't want to use Docker, see the following section which explains how to
+well. The [Docker image] comes with all dependencies pre-installed. If you don't
-install all dependencies on your system:
+want to use Docker, see the following section which explains how to install all
+dependencies on your system:
 
 === ":material-apple: macOS"
 

material/plugins/social/plugin.py

@@ -70,7 +70,7 @@ class SocialPlugin(BasePlugin):
         if not dependencies:
             log.error(
                 "Required dependencies of \"social\" plugin not found. "
-                "Install with: pip install cairosvg pillow"
+                "Install with: pip install pillow cairosvg"
             )
             sys.exit()
 

src/plugins/social/plugin.py

@@ -70,7 +70,7 @@ class SocialPlugin(BasePlugin):
         if not dependencies:
             log.error(
                 "Required dependencies of \"social\" plugin not found. "
-                "Install with: pip install cairosvg pillow"
+                "Install with: pip install pillow cairosvg"
             )
             sys.exit()