feat: update themes json list

Author: github-actions[bot]

theme/themes.json

@@ -2302,5 +2302,18 @@
         "colorfulErrorColor": "#bc7fc0",
         "colorfulErrorExtraColor": "#bc41b1",
         "name": "lilac_mist"
+    },
+    {
+        "bgColor": "#f1e5da",
+        "mainColor": "#e0794e",
+        "caretColor": "#e0794e",
+        "subColor": "#688e8f",
+        "subAltColor": "#e3d3c6",
+        "textColor": "#023e3b",
+        "errorColor": "#a01034",
+        "errorExtraColor": "#a01034",
+        "colorfulErrorColor": "#a01034",
+        "colorfulErrorExtraColor": "#a01034",
+        "name": "terrazzo"
     }
 ]