✨ plain mode

app.py

@@ -1,6 +1,6 @@
 import os
 from flask import Flask, render_template, abort, jsonify, request
-from comics_data import COMICS, FULL_WIDTH_DEFAULT
+from comics_data import COMICS, FULL_WIDTH_DEFAULT, PLAIN_DEFAULT
 
 app = Flask(__name__)
 
@@ -17,12 +17,22 @@ def is_full_width(comic):
     return FULL_WIDTH_DEFAULT
 
 
+def is_plain(comic):
+    """Determine if a comic should be plain mode based on global and per-comic settings"""
+    # If comic explicitly sets plain, use that value
+    if 'plain' in comic:
+        return comic['plain']
+    # Otherwise use the global default
+    return PLAIN_DEFAULT
+
+
 def enrich_comic(comic):
     """Add computed properties to comic data"""
     if comic is None:
         return None
     enriched = comic.copy()
     enriched['full_width'] = is_full_width(comic)
+    enriched['plain'] = is_plain(comic)
     return enriched