Fixes

biomes/tundra/forest.json

@@ -11,6 +11,7 @@
         "min": 8
     }],
     "customDerivitives": [{
+        "category": "forest",
         "id": "tundra_forest",
         "grassColor": "#56B16F",
         "waterColor": "#80B4C6",

biomes/tundra/mountains.json

@@ -21,6 +21,7 @@
         }
     ],
     "customDerivitives": [{
+        "category": "forest",
         "id": "tundra_mountains",
         "grassColor": "#B0A747",
         "waterColor": "#80B4C6",

biomes/tundra/redwood-forest.json

@@ -11,6 +11,7 @@
         "generator": "smooth-dunes"
     }],
     "customDerivitives": [{
+        "category": "forest",
         "id": "tundra_redwood_forest",
         "grassColor": "#AC7B1F",
         "waterColor": "#80B4C6",

biomes/tundra/sequia-redwoods.json

@@ -10,6 +10,7 @@
         "generator": "plain"
     }],
     "customDerivitives": [{
+        "category": "forest",
         "id": "tundra_sequoia_redwoods",
         "grassColor": "#7BA13C",
         "waterColor": "#80B4C6",

regions/frozen.json

@@ -37,7 +37,7 @@
             "style": "IRIS",
             "zoom": 5
         }
-    }
+    },
     "deposits": [
         {
             "minHeight": 8,