multicolor correction

not multicolored is single colored or monocolored not colorless...
colorless has no color...

projects/mtg/bin/Res/sets/primitives/mtg.txt

@@ -35578,7 +35578,7 @@ toughness=3
 [/card]
 [card]
 name=Furnace Celebration
-auto=@sacrificed(other *|mybattlefield):pay({2}) damage:2 target(creature,player)
+auto=@sacrificed(other *|mybattlefield):ability$!name(pay 2 for damage) pay[[{2}]] name(pay 2 for damage) damage:2 target(creature,player)!$ controller
 mana={1}{R}{R}
 type=Enchantment
 text=Whenever you sacrifice another permanent, you may pay {2}. If you do, Furnace Celebration deals 2 damage to target creature or player.

projects/mtg/src/CardGui.cpp

@@ -1242,6 +1242,7 @@ bool CardGui::FilterCard(MTGCard * _card,string filter)
                     if (minus)
                     {
                         cd.setisMultiColored(-1);
+                        cd.SetExclusionColor(0);//not multicolored is monocolored not colorless, use iscolorless attribute
                     }
                     else
                     {

projects/mtg/src/TargetChooser.cpp

@@ -503,6 +503,7 @@ TargetChooser * TargetChooserFactory::createTargetChooser(string s, MTGCardInsta
                     if (minus)
                     {
                         cd->setisMultiColored(-1);
+						cd->SetExclusionColor(0);//not multicolored is monocolored not colorless, use iscolorless attribute
                     }
                     else
                     {