private static void buildCoreSet(Release set, List<SeperatorDefinition> seps) throws MalformedURLException {
        
        for(MagicColor c: MagicColor.values()) {
            if (!c.includeInDefaultSets())
                continue;
            for(Rarity r: Rarity.values()) {
                if (r == Rarity.Mystic)
                    continue;
                SeperatorDefinition def = new SeperatorDefinition();
                def.addLeftSymbol(new ImageIconDrawer(SymbolFactory.getIcon(c)));
                def.addRightSymbol(new ImageIconDrawer(SymbolFactory.getIcon(set, r)));
                if (r == Rarity.Rare)
                    def.addRightSymbol(new ImageIconDrawer(SymbolFactory.getIcon(set, Rarity.Mystic)));
                seps.add(def);
            }
        }
        
        SeperatorDefinition def = new SeperatorDefinition();
        def.addLeftSymbol(new TextSymbolDrawer("Lands"));
        for(Rarity r: Rarity.values())
            def.addRightSymbol(new ImageIconDrawer(SymbolFactory.getIcon(set, r)));
        seps.add(def);
    }