Add two more fonts

assets/sd-fonts/fonts.json

@@ -130,6 +130,38 @@
         }
       ]
     },
+    {
+      "name": "Charis",
+      "description": "Great universal pick",
+      "styles": [
+        "regular",
+        "bold",
+        "italic",
+        "bolditalic"
+      ],
+      "files": [
+        {
+          "name": "Charis/Charis_10.cpfont",
+          "size": 337367
+        },
+        {
+          "name": "Charis/Charis_12.cpfont",
+          "size": 417485
+        },
+        {
+          "name": "Charis/Charis_14.cpfont",
+          "size": 532708
+        },
+        {
+          "name": "Charis/Charis_16.cpfont",
+          "size": 656012
+        },
+        {
+          "name": "Charis/Charis_18.cpfont",
+          "size": 843707
+        }
+      ]
+    },
     {
       "name": "Gelasio",
       "description": "Readable old-style serif (Latin, Cyrillic)",
@@ -736,6 +768,38 @@
         }
       ]
     },
+    {
+      "name": "Sourcerer",
+      "description": "Thicker versionj of Source Serif",
+      "styles": [
+        "regular",
+        "bold",
+        "italic",
+        "bolditalic"
+      ],
+      "files": [
+        {
+          "name": "Sourcerer/Sourcerer_10.cpfont",
+          "size": 253272
+        },
+        {
+          "name": "Sourcerer/Sourcerer_12.cpfont",
+          "size": 303974
+        },
+        {
+          "name": "Sourcerer/Sourcerer_14.cpfont",
+          "size": 366935
+        },
+        {
+          "name": "Sourcerer/Sourcerer_16.cpfont",
+          "size": 435715
+        },
+        {
+          "name": "Sourcerer/Sourcerer_18.cpfont",
+          "size": 536040
+        }
+      ]
+    },    
     {
       "name": "SourceSans3",
       "description": "Adobe humanist sans-serif (Latin, Greek, Cyrillic)",

lib/EpdFont/scripts/fontconvert_sdcard.py

@@ -382,7 +382,11 @@ def extract_kerning_fonttools(font_path, codepoints, ppem):
                 if lookup.LookupType == 9 and hasattr(st, 'ExtSubTable'):
                     actual = st.ExtSubTable
                 if hasattr(actual, 'Format'):
+                    if actual.LookupType == 2:
                         _extract_pairpos_subtable(actual, glyph_to_cp, raw_kern)
+                    else:
+                        print(f"  Debug: skipping unsupported GPOS kern lookupType={actual.LookupType} (Format={actual.Format})",
+                              file=sys.stderr)
 
     font.close()
 

lib/EpdFont/scripts/sd-fonts.yaml

@@ -133,6 +133,26 @@ families:
       italic:     {url: "https://raw.githubusercontent.com/nicoverbruggen/ebook-fonts/main/fonts/core/Readerly-Italic.ttf"}
       bolditalic: {url: "https://raw.githubusercontent.com/nicoverbruggen/ebook-fonts/main/fonts/core/Readerly-BoldItalic.ttf"}
 
+  - name: Charis
+    description: "Great universal pick"
+    intervals: latin-ext,cyrillic
+    sizes: [10, 12, 14, 16, 18]
+    styles:
+      regular:    {url: "https://raw.githubusercontent.com/nicoverbruggen/ebook-fonts/main/fonts/core/NV_Charis-Regular.ttf"}
+      bold:       {url: "https://raw.githubusercontent.com/nicoverbruggen/ebook-fonts/main/fonts/core/NV_Charis-Bold.ttf"}
+      italic:     {url: "https://raw.githubusercontent.com/nicoverbruggen/ebook-fonts/main/fonts/core/NV_Charis-Italic.ttf"}
+      bolditalic: {url: "https://raw.githubusercontent.com/nicoverbruggen/ebook-fonts/main/fonts/core/NV_Charis-BoldItalic.ttf"}
+
+  - name: Sourcerer
+    description: "Thicker versionj of Source Serif"
+    intervals: latin-ext,cyrillic
+    sizes: [10, 12, 14, 16, 18]
+    styles:
+      regular:    {url: "https://raw.githubusercontent.com/nicoverbruggen/ebook-fonts/main/fonts/core/Sourcerer-Regular.ttf"}
+      bold:       {url: "https://raw.githubusercontent.com/nicoverbruggen/ebook-fonts/main/fonts/core/Sourcerer-Bold.ttf"}
+      italic:     {url: "https://raw.githubusercontent.com/nicoverbruggen/ebook-fonts/main/fonts/core/Sourcerer-Italic.ttf"}
+      bolditalic: {url: "https://raw.githubusercontent.com/nicoverbruggen/ebook-fonts/main/fonts/core/Sourcerer-BoldItalic.ttf"}
+
   - name: Spectral
     description: "A new and versatile serif face (Latin, Cyrillic)"
     intervals: latin-ext,cyrillic