HeartColors.class

import net.minecraft.client.Minecraft;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.client.event.RenderGameOverlayEvent;
import net.minecraftforge.client.gui.ForgeIngameGui;
import net.minecraftforge.eventbus.api.SubscribeEvent;

public class HeartColors extends ForgeIngameGui {

    public static final ResourceLocation BLUE_HEARTS = new ResourceLocation("xlifehealth:textures/gui/blue_hearts.png");

    public HeartColors() { super(Minecraft.getInstance()); }

    @SubscribeEvent
    public static void setBlueHearts(RenderGameOverlayEvent event) {
        if (event.getType() == RenderGameOverlayEvent.ElementType.HEALTH) {
            Minecraft mc = Minecraft.getInstance();
            mc.getTextureManager().bindTexture(BLUE_HEARTS);

        }
    }
}