dark m21 mana symbols

data/scripts/versions/m15/m21.js

@@ -18,8 +18,9 @@ if (!loadedVersions.includes('m15M21Showcase')) {
 		['Green Power/Toughness', '/data/images/cardImages/m15/m21/m15M21PTG.png', 1136/1500, 1858/2100, 282/1500, 154/2100, ['Full']],
 		['Holo Stamp', '/data/images/cardImages/m15/m21/m15M21Stamp.png', 709/1500, 1873/2100, 82/1500, 82/2100, ['Full']]
 	], 'frameClassM15M21Showcase')
-	addToManaSymbolList('/data/images/cardImages/manaSymbols/m21/', ["m210", "m211", "m212", "m213", "m214", "m215", "m216", "m217", "m218", "m219", "m21w", "m21u", "m21b", "m21r", "m21g", "m21x"])
-	notify('The M21 Showcase frame uses special mana symbols for 1-9, WUBRG, and X. If you would like to use these, just add an "m21" at the beginning of each symbol. For example, "2 g g" would become "m212 m21g m21g".', '#aaffaae0')
+	addToManaSymbolList('/data/images/cardImages/manaSymbols/m21/', ["m210", "m211", "m212", "m213", "m214", "m215", "m216", "m217", "m218", "m219", "m21w", "m21u", "m21b", "m21r", "m21g", "m21x",])
+	addToManaSymbolList('/data/images/cardImages/manaSymbols/m21/dark/', ["dm210", "dm211", "dm212", "dm213", "dm214", "dm215", "dm216", "dm217", "dm218", "dm219", "dm21w", "dm21u", "dm21b", "dm21r", "dm21g", "dm21x",])
+	notify('The M21 Showcase frame uses special mana symbols for 1-9, WUBRG, and X. If you would like to use these, just add an "m21" at the beginning of each symbol. For example, "2 g g" would become "m212 m21g m21g". For the darkened mana symbols seen on the white frame, add an additional "d" at the beginning. For example, "3 w" would become "dm213 dm21w".', '#aaffaae0')
 }
 
 if (currentVersion != 'm15M21Showcase') {