diff --git a/core/src/main/java/wtf/beatrice/retrorender/GameScreen.java b/core/src/main/java/wtf/beatrice/retrorender/GameScreen.java
index a9a96d4..1fc7194 100644
--- a/core/src/main/java/wtf/beatrice/retrorender/GameScreen.java
+++ b/core/src/main/java/wtf/beatrice/retrorender/GameScreen.java
@@ -71,12 +71,12 @@ public class GameScreen implements Screen {
         // shadow-casting directional light
         shadowLight = new DirectionalShadowLight(
             1024, 1024, // shadow map resolution
-            60f, 60f,     // viewport size (render distance)
-            1f, 50f       // near/far for the light camera
+            60f, 60f, // viewport size
+            1f, 50f // near/far for the light camera
         );
         shadowLight.set(
-            1.0f, 0.85f, 0.9f,   // casting light color
-            -0.7f, -1.0f, -0.3f  // direction
+            1.0f, 0.85f, 0.9f, // casting light color
+            -0.7f, -1.0f, -0.3f // direction
         );
 
         environment.add(shadowLight);
@@ -93,7 +93,7 @@ public class GameScreen implements Screen {
         hud = new DebugHud();
     }
 
-    // --- Screen methods ---
+    // --- screen methods
     private void initRetroBuffer() {
         // RGB + depth
         frameBuffer = new FrameBuffer(
diff --git a/renovate.json b/renovate.json
new file mode 100644
index 0000000..7190a60
--- /dev/null
+++ b/renovate.json
@@ -0,0 +1,3 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json"
+}