aether-legacy/src/main/java/com/gildedgames/the_aether/client/gui/button/GuiCapeButton.java

package com.gildedgames.the_aether.client.gui.button;

import com.gildedgames.the_aether.player.PlayerAether;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.resources.I18n;

public class GuiCapeButton extends GuiButton {
    public GuiCapeButton(int xPos, int yPos) {
        super(203, xPos, yPos, 150, 20, I18n.format("gui.button.aether_cape"));
    }

    public void drawButton(Minecraft mc, int mouseX, int mouseY) {
        PlayerAether player = PlayerAether.get(mc.thePlayer);

        if (player.shouldRenderCape) {
            this.displayString
                = I18n.format("gui.button.aether_cape") + " " + I18n.format("options.on");
        } else {
            this.displayString = I18n.format("gui.button.aether_cape") + " "
                + I18n.format("options.off");
        }

        super.drawButton(mc, mouseX, mouseY);
    }
}