Started working on the new config GUI. Looks pretty nice!

src/main/java/de/skate702/craftingkeys/config/GuiConfig.java

@@ -1,6 +1,46 @@
 package de.skate702.craftingkeys.config;
 
+import net.minecraft.client.gui.GuiButton;
 import net.minecraft.client.gui.GuiScreen;
+import net.minecraft.client.gui.GuiTextField;
+import net.minecraft.util.ResourceLocation;
+
+import java.awt.*;
 
 public class GuiConfig extends GuiScreen {
+
+    public static final int GuiID = 702;
+    private GuiTextField testText;
+
+    @Override
+    public void initGui() {
+
+        buttonList.add((new GuiButton(0, width / 2 - 58, height / 2 - 84, 19, 18, "Q")));
+
+    }
+
+    @Override
+    public void drawScreen(int mouseX, int mouseY, float partialTicks) {
+
+        //GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
+        //GL11.glTranslatef(0.0f, 0.0f, -1.0f);
+
+        Color pureWhite = new Color(255, 255, 255, 255);
+        //drawWorldBackground(0);
+        drawDefaultBackground();
+
+        drawCenteredString(fontRendererObj, "Crafting Keys Config", width / 2, height / 2 - 115, pureWhite.getRGB());
+
+        mc.renderEngine.bindTexture(new ResourceLocation("textures/gui/container/crafting_table.png"));
+        drawTexturedModalRect(width / 2 - 86, height / 2 - 100, 1, 0, 174, 80);
+
+        drawHorizontalLine(width / 2 - 110, width / 2 + 110, height / 2 - 20, pureWhite.getRGB());
+
+        drawCenteredString(fontRendererObj, "Configure your keys here. Click \"Save\" when finished!", width / 2, height / 2 - 10, pureWhite.getRGB());
+
+        //drawRect(width / 2 - 100, width / 2 + 100, height / 2 - 5, height / 2 + 5, pureWhite.getRGB());
+
+        super.drawScreen(mouseX, mouseY, partialTicks);
+    }
+
 }

src/main/java/de/skate702/craftingkeys/config/GuiConfigHandler.java

@@ -0,0 +1,22 @@
+package de.skate702.craftingkeys.config;
+
+import cpw.mods.fml.common.network.IGuiHandler;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.world.World;
+
+public class GuiConfigHandler implements IGuiHandler {
+
+    @Override
+    public Object getServerGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
+        return null;
+    }
+
+    @Override
+    public Object getClientGuiElement(int ID, EntityPlayer player, World world, int x, int y, int z) {
+        if (ID == GuiConfig.GuiID) {
+            return new GuiConfig();
+        }
+
+        return null;
+    }
+}