GdxSetup: Update generated main class to look more modern

extensions/gdx-setup/res/com/badlogic/gdx/setup/resources/core/src/MainClass

@@ -1,25 +1,30 @@
 package %PACKAGE%;
 
 import com.badlogic.gdx.ApplicationAdapter;
+import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.graphics.g2d.SpriteBatch;
 import com.badlogic.gdx.utils.ScreenUtils;
 
 public class %MAIN_CLASS% extends ApplicationAdapter {
 	SpriteBatch batch;
 	Texture img;
+	float imgPosX;
+	float imgPosY;
 
 	@Override
 	public void create () {
 		batch = new SpriteBatch();
-		img = new Texture("badlogic.jpg");
+		img = new Texture("logo_dark.png");
+		imgPosX = (Gdx.graphics.getWidth() - img.getWidth()) / 2f;
+		imgPosY = (Gdx.graphics.getHeight() - img.getHeight()) / 2f;
 	}
 
 	@Override
 	public void render () {
-		ScreenUtils.clear(1, 0, 0, 1);
+		ScreenUtils.clear(0.14f, 0.14f, 0.14f, 1);
 		batch.begin();
-		batch.draw(img, 0, 0);
+		batch.draw(img, imgPosX, imgPosY);
 		batch.end();
 	}
 

extensions/gdx-setup/src/com/badlogic/gdx/setup/GdxSetup.java

@@ -270,7 +270,7 @@ public void build (ProjectBuilder builder, String outputDir, String appName, Str
 		}
 
 		// Assets
-		project.files.add(new ProjectFile("assets/badlogic.jpg", assetPath + "/badlogic.jpg", false));
+		project.files.add(new ProjectFile("assets/logo_dark.png", assetPath + "/logo_dark.png", false));
 
 		// android project
 		if (builder.modules.contains(ProjectType.ANDROID)) {