Only draw popup background on layer 0

src/main/java/de/johni0702/minecraft/gui/popup/AbstractGuiPopup.java

@@ -45,6 +45,7 @@ public abstract class AbstractGuiPopup<T extends AbstractGuiPopup<T>> extends Ab
 
         @Override
         public void draw(GuiRenderer renderer, ReadableDimension size, RenderInfo renderInfo) {
+            if (renderInfo.getLayer() == 0) {
                 renderer.bindTexture(TEXTURE);
                 int w = size.getWidth();
                 int h = size.getHeight();
@@ -77,6 +78,7 @@ public abstract class AbstractGuiPopup<T extends AbstractGuiPopup<T>> extends Ab
                         renderer.drawTexturedRect(x, y, u0 + 6, v0 + 6, rx, ry);
                     }
                 }
+            }
 
             super.draw(renderer, size, renderInfo);
         }