Changed to Hex colors.

app.py

@@ -83,8 +83,8 @@ class ArtemisiaTheme(Base):
 
         # Set text colors to white
         self.set(
-            body_text_color=colors.white,
-            text_color=colors.white,
+            body_text_color="#ffffff",
+            text_color="ffffff",
         )
         
         # Background settings