src/main/java/org/saturnclient/config/Config.java

@@ -6,6 +6,7 @@ import org.saturnclient.common.provider.GLFWProvider;
 import org.saturnclient.common.provider.Providers;
 import org.saturnclient.common.ref.asset.IdentifierRef;
 import org.saturnclient.config.property.BoolProperty;
+import org.saturnclient.config.property.IntProperty;
 import org.saturnclient.config.property.KeybindingProperty;
 import org.saturnclient.config.property.Property;
 import org.saturnclient.ui.resources.Textures;
@@ -17,6 +18,7 @@ public class Config {
     public static BoolProperty saturnTitleScreen = Property.bool(true);
     public static BoolProperty cloakPhysics = Property.bool(true);
     public static BoolProperty stagger = Property.bool(true);
+    public static IntProperty backgroundBlur = Property.integer(5).range(0, 10);
     public static KeybindingProperty openEmoteWheel = Property.keybinding(GLFWProvider.GLFW_KEY_B);
 
     public static IdentifierRef getLogo() {
@@ -32,6 +34,7 @@ public class Config {
         config.property("Open Emote Wheel", openEmoteWheel, "The key that opens the emote wheel");
         config.property("Cloak Physics", cloakPhysics, "Let cloaks swing as you move");
         config.property("Stagger Animations", stagger, "Animate list items one after another");
+        config.property("Background blur", backgroundBlur, "How much the game behind Saturn's screens is blurred");
 
         // Initialize a sub namespace for theme
         Theme.init(config);

src/main/java/org/saturnclient/ui/SaturnScreen.java

@@ -1,10 +1,16 @@
 package org.saturnclient.ui;
 
+import java.time.Duration;
 import java.time.Instant;
 import java.util.ArrayList;
 import java.util.List;
 
+import org.saturnclient.config.Config;
+
 public abstract class SaturnScreen {
+    /** How long the background blur takes to fade in, in ms */
+    private static final int BLUR_FADE_IN = 700;
+
     public static interface ScreenProvider {
         public void close();
 
@@ -22,7 +28,8 @@ public abstract class SaturnScreen {
     public List<Element> elements = new ArrayList<>();
     public float backgroundOpacity = 1.0f;
     public Instant start = null;
-    public int backgroundBlur = 10;
+    /** Whether the game behind this screen is blurred, by the client's background blur setting */
+    public boolean blurBackground = true;
 
     // Provider
     public ScreenProvider provider;
@@ -31,6 +38,19 @@ public abstract class SaturnScreen {
         this.title = title;
     }
 
+    /**
+     * How much to blur the game behind this screen right now: the client's
+     * setting, faded in over the screen's first moments.
+     */
+    public int getBackgroundBlur() {
+        if (!blurBackground || start == null) {
+            return 0;
+        }
+
+        long elapsed = Duration.between(start, Instant.now()).toMillis();
+        return Math.round(Config.backgroundBlur.value * Math.min(elapsed / (float) BLUR_FADE_IN, 1f));
+    }
+
     public void init() {
         elements.clear();
         width = provider.getWidth();

src/main/java/org/saturnclient/ui/screens/TitleMenu.java

@@ -22,7 +22,7 @@ public class TitleMenu extends SaturnScreen {
 
     @Override
     public void ui() {
-        backgroundBlur = 0;
+        blurBackground = false;
 
         draw(new ImageTexture(Textures.LOGO_TEXT).dimensions(98, 10).center(width, height, 0, -40)
                 .animation(new Fade(AnimationConfig.logo.duration.value)));