Added color:#FFFFFF, color:FFFFFF or color:red,green,blue parser for leather armor color

eco-api/src/main/java/com/willfp/eco/core/items/args/LeatherArmorColorArgParser.java

@@ -0,0 +1,73 @@
+package com.willfp.eco.core.items.args;
+
+import org.bukkit.Color;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.inventory.meta.LeatherArmorMeta;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.function.Predicate;
+
+public class LeatherArmorColorArgParser implements LookupArgParser {
+    @Override
+    public @Nullable Predicate<ItemStack> parseArguments(@NotNull String[] args, @NotNull ItemMeta meta) {
+
+        if (!(meta instanceof LeatherArmorMeta)) return pred -> false;
+
+        for (String arg : args) {
+            String[] argSplit = arg.split(":");
+            if (!argSplit[0].equalsIgnoreCase("color")) {
+                continue;
+            }
+            if (argSplit.length < 2) {
+                continue;
+            }
+            String asString = argSplit[1];
+
+            LeatherArmorMeta lMeta = (LeatherArmorMeta) meta;
+
+            lMeta.setColor(fromString(asString));
+
+            return pred -> true;
+        }
+
+        return pred -> false;
+
+    }
+
+    private Color fromString(String color) {
+
+        if (color.contains(",")) {
+
+            String[] split = color.split(",");
+
+            int red = 0;
+            int green = 0;
+            int blue = 0;
+
+            if (split.length > 0) {
+                red = Integer.parseInt(split[0]);
+            }
+            if (split.length > 1) {
+                green = Integer.parseInt(split[1]);
+            }
+            if (split.length > 2) {
+                blue = Integer.parseInt(split[2]);
+            }
+
+            return Color.fromRGB(red, green, blue);
+
+        } else if (color.startsWith("#")) {
+
+            java.awt.Color from = java.awt.Color.decode(color);
+
+            return Color.fromRGB(from.getRed(), from.getGreen(), from.getBlue());
+
+        } else {
+            return fromString("#"+color);
+        }
+
+    }
+
+}