fix vcdopcod

Author: DanielGoldfarb

src/mplfinance/_styles.py

@@ -267,4 +267,7 @@ def _check_and_set_mktcolor(candle,**kwarg):
     if config['alpha'] is not None:
         marketcolors.update({'alpha':config['alpha']})
 
+    if config['vcdopcod'] is not None:
+        marketcolors.update({'vcdopcod':config['vcdopcod']})
+
     return marketcolors