install the fonts

.github/workflows/gnu-data.yml

@@ -38,7 +38,7 @@ jobs:
       shell: bash
       run: |
         sudo apt-get update
-        sudo apt-get install jq python3-pandas python3-matplotlib python3-seaborn
+        sudo apt-get install jq python3-pandas python3-matplotlib python3-seaborn fonts-dejavu-core
 
     - name: Checkout repo
       uses: actions/checkout@v6

graph_common.py

@@ -28,7 +28,13 @@ def setup_theme():
     plt.rcParams.update(
         {
             "font.family": "sans-serif",
-            "font.sans-serif": ["Inter", "SF Pro Display", "Segoe UI", "Arial"],
+            "font.sans-serif": [
+                "Inter",
+                "SF Pro Display",
+                "Segoe UI",
+                "DejaVu Sans",
+                "Arial",
+            ],
             "axes.facecolor": "#FAFAFA",
             "figure.facecolor": "white",
             "axes.edgecolor": "#CCCCCC",