improve pins textures (#842)

src/main/java/appeng/client/gui/AEBaseGui.java

@@ -815,7 +815,7 @@ public abstract class AEBaseGui extends GuiContainer {
 
     private void drawSlot(final Slot s) {
         if (s instanceof SlotME || s instanceof SlotFake) {
-            if (s instanceof SlotME sme && sme.isPin()) {
+            if (s instanceof SlotME sme && sme.isPin() && !sme.getHasStack()) {
                 drawTextureOnSlot(s, sme.getPinIcon(), sme.getOpacityOfIcon());
             }
             IAEItemStack stack = Platform.getAEStackInSlot(s);

src/main/java/appeng/client/gui/widgets/GuiImgButton.java

@@ -844,35 +844,35 @@ public class GuiImgButton extends GuiButton implements ITooltip {
                     ButtonToolTips.CPUOnlyAllowNonPlayerDesc);
 
             this.registerApp(
-                    16 * 15 + 15,
+                    16 * 15 + 14,
                     Settings.PINS_STATE,
                     PinsState.DISABLED,
                     ButtonToolTips.PinsSection,
                     ButtonToolTips.PinsSectionDisabled);
 
             this.registerApp(
-                    16 * 15 + 14,
+                    16 * 15 + 13,
                     Settings.PINS_STATE,
                     PinsState.ONE,
                     ButtonToolTips.PinsSection,
                     ButtonToolTips.PinsSectionActive);
 
             this.registerApp(
-                    16 * 15 + 14,
+                    16 * 15 + 13,
                     Settings.PINS_STATE,
                     PinsState.TWO,
                     ButtonToolTips.PinsSection,
                     ButtonToolTips.PinsSectionActive);
 
             this.registerApp(
-                    16 * 15 + 14,
+                    16 * 15 + 13,
                     Settings.PINS_STATE,
                     PinsState.THREE,
                     ButtonToolTips.PinsSection,
                     ButtonToolTips.PinsSectionActive);
 
             this.registerApp(
-                    16 * 15 + 14,
+                    16 * 15 + 13,
                     Settings.PINS_STATE,
                     PinsState.FOUR,
                     ButtonToolTips.PinsSection,