Update app.py

app.py

@@ -4,6 +4,16 @@
 import argparse
 import os
 import urllib.request
+import json
+
+def fix_theme(theme):
+    with open("/home/user/.local/lib/python3.8/site-packages/wfd/webui/doki_settings.json", encoding = "utf-8") as fp:
+        doki = json.load(fp)
+
+    doki["theme"] = theme
+    
+    with open("/home/user/.local/lib/python3.8/site-packages/wfd/webui/doki_settings.json", "w", encoding = "utf-8") as fp:
+        json.dump(doki, fp)
 
 def fix_local_file(path):
     # probably should include the tile files in the package. let's get it running first.
@@ -49,6 +59,8 @@ if __name__ == "__main__":
     fix_local_file("tile_data/platform_v2.npz")
     fix_local_file("tile_data/wfc/platform_32x32.npz")
     fix_local_file("default/base.chk")
+
+    fix_theme("KonoSuba: Darkness Light")
     
     from wfd.webui import start_demo
     class Arguments: