diff --git a/core/shaders/screen_effects.gdshader b/core/shaders/screen_effects.gdshader
index 27f389e..2b5548f 100644
--- a/core/shaders/screen_effects.gdshader
+++ b/core/shaders/screen_effects.gdshader
@@ -1,41 +1,54 @@
 shader_type canvas_item;
 render_mode unshaded;
 
+// uniforms
+
 uniform sampler2D screen_texture : hint_screen_texture, repeat_disable, filter_linear_mipmap;
 
-// simple edge detection
+// constants
+
+const vec3 BLACK = vec3(0);
+const float glow_strength = 0.5;
+const float glow_size_lod = 3.0;
+const int outline_radius = 1;
+
+// simple edge detection based on black
+
 bool is_edge(int radius, vec2 screen_uv, vec2 screen_pixel_size) {
-	bool ed_found_black = false;
+	bool ed_found_bg = false;
 	bool ed_found_color = false;
 	// check neighbor pixels
 	for (int x = -radius; x < radius+1; x++) {
 		for (int y = -radius; y < radius+1; y++) {
 			vec4 p = texture(screen_texture, screen_uv + (vec2(float(x), float(y)) * screen_pixel_size));
-			if (p.rgb == vec3(0.0)) {
-				ed_found_black = true;
+			if (p.rgb == BLACK) {
+				ed_found_bg = true;
 			} else {
 				ed_found_color = true;
 			}
 		}
 	}
-	return ed_found_black && ed_found_color;
+	return ed_found_bg && ed_found_color;
 }
 
+//
+
 void fragment() {
 	// get screen texture
 	vec4 screen = texture(screen_texture, SCREEN_UV);
 	// apply edge detection
-	int radius = max(int(0.003 * (1.0/SCREEN_PIXEL_SIZE.y)), 1); // with a relative radius
-	if (is_edge(radius, SCREEN_UV, SCREEN_PIXEL_SIZE)) {
-		COLOR = screen;
-	} else {
-		COLOR = vec4(0, 0, 0, 1);
+	if (is_edge(outline_radius, SCREEN_UV, SCREEN_PIXEL_SIZE)) {
+		if (screen.rgb != BLACK) { // would be incompatible with target backgrounds != black
+			COLOR = screen;
+		}
 	}
 	// apply glow
 	// blur a relative radius -> x * log(1.0/SCREEN_PIXEL_SIZE.y)
 	// using log, because the LOD value seems to affect the blur radius exponentially
-	vec4 glow = textureLod(screen_texture, SCREEN_UV, 0.5 * log(1.0/SCREEN_PIXEL_SIZE.y));
-	if (screen.rgb == vec3(0.0)) {
-		COLOR = mix(COLOR, glow, 0.4) + (glow * 0.3);
+	vec4 glow = textureLod(screen_texture, SCREEN_UV, glow_size_lod);
+	if (screen.rgb == BLACK) {
+		COLOR += glow * glow_strength;
 	}
+	// set alpha to 1
+	COLOR.a = 1.0;
 }
diff --git a/core/shaders/screen_effects_2.gdshader b/core/shaders/screen_effects_2.gdshader
new file mode 100644
index 0000000..4f54c6b
--- /dev/null
+++ b/core/shaders/screen_effects_2.gdshader
@@ -0,0 +1,29 @@
+shader_type canvas_item;
+render_mode unshaded;
+
+// uniforms
+
+uniform sampler2D screen_texture : hint_screen_texture, repeat_disable, filter_linear_mipmap;
+uniform sampler2D vignette_mask;
+
+// constants
+
+const float rgb_distortion_v_mult = 0.9;
+const float rgb_distortion_v_exp = 2.0;
+const float rgb_distortion_v_min = 0.04;
+const float rgb_distortion_v_max = 0.12;
+
+//
+
+void fragment() {
+	float v = texture(vignette_mask, SCREEN_UV).r;
+	// rgb & blur distortion
+	float v_ = clamp(
+		pow(v * rgb_distortion_v_mult, rgb_distortion_v_exp),
+		rgb_distortion_v_min,
+		rgb_distortion_v_max
+	);
+	COLOR.r = textureLod(screen_texture, SCREEN_UV - (v_ * 0.01), v).r;
+	COLOR.g = textureLod(screen_texture, SCREEN_UV + (v_ * 0.01), v).g;
+	COLOR.b = textureLod(screen_texture, SCREEN_UV, v).b;
+}
diff --git a/core/shaders/vignette_mask.tres b/core/shaders/vignette_mask.tres
new file mode 100644
index 0000000..a53bcf5
--- /dev/null
+++ b/core/shaders/vignette_mask.tres
@@ -0,0 +1,10 @@
+[gd_resource type="GradientTexture2D" load_steps=2 format=3 uid="uid://bwlgypt4xjocj"]
+
+[sub_resource type="Gradient" id="Gradient_h26vj"]
+
+[resource]
+gradient = SubResource("Gradient_h26vj")
+width = 640
+height = 640
+fill = 1
+fill_from = Vector2(0.5, 0.5)
diff --git a/levels/waking_up.tscn b/levels/waking_up.tscn
index f9eb58f..4061b25 100644
--- a/levels/waking_up.tscn
+++ b/levels/waking_up.tscn
@@ -12,10 +12,10 @@ position = Vector2(400, 224)
 
 [node name="DynamicPolygon" parent="StaticBody2D" instance=ExtResource("2_83sm2")]
 polygon = PackedVector2Array(296, 288, 296, 368, 536, 368, 536, 336, 776, 336, 776, 400, 104, 400, 104, 360, 184, 360, 184, 304, 248, 304, 248, 288)
-color = Color(0.110313, 0.574619, 0.546744, 1)
+color = Color(0.235294, 0.607843, 0.643137, 1)
 update = false
 
 [node name="DynamicPolygon2" parent="StaticBody2D" instance=ExtResource("2_83sm2")]
 polygon = PackedVector2Array(520, 96, 520, 280, 552, 280, 552, 32, 632, 32, 632, -8, 520, -8)
-color = Color(0.109804, 0.576471, 0.545098, 1)
+color = Color(0.236278, 0.606088, 0.644729, 1)
 update = false
diff --git a/main.tscn b/main.tscn
index 199fce6..8d1b36c 100644
--- a/main.tscn
+++ b/main.tscn
@@ -1,21 +1,43 @@
-[gd_scene load_steps=4 format=3 uid="uid://c13h0uf5fgx60"]
+[gd_scene load_steps=7 format=3 uid="uid://c13h0uf5fgx60"]
 
 [ext_resource type="PackedScene" uid="uid://ptqto8ctsp4u" path="res://levels/waking_up.tscn" id="1_3swad"]
 [ext_resource type="Shader" path="res://core/shaders/screen_effects.gdshader" id="2_ha2mu"]
+[ext_resource type="Shader" path="res://core/shaders/screen_effects_2.gdshader" id="3_lm730"]
+[ext_resource type="Texture2D" uid="uid://bwlgypt4xjocj" path="res://core/shaders/vignette_mask.tres" id="4_wc582"]
 
 [sub_resource type="ShaderMaterial" id="ShaderMaterial_myg35"]
 shader = ExtResource("2_ha2mu")
 
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_gsqgo"]
+shader = ExtResource("3_lm730")
+shader_parameter/vignette_mask = ExtResource("4_wc582")
+
 [node name="Main" type="Node2D"]
 
 [node name="WakingUp" parent="." instance=ExtResource("1_3swad")]
 
-[node name="CanvasLayer" type="CanvasLayer" parent="."]
+[node name="ScreenShader" type="Node2D" parent="."]
 
-[node name="ColorRect" type="ColorRect" parent="CanvasLayer"]
+[node name="CanvasLayer" type="CanvasLayer" parent="ScreenShader"]
+editor_description = "Outline & glow"
+
+[node name="ColorRect" type="ColorRect" parent="ScreenShader/CanvasLayer"]
 material = SubResource("ShaderMaterial_myg35")
 anchors_preset = 15
 anchor_right = 1.0
 anchor_bottom = 1.0
 grow_horizontal = 2
 grow_vertical = 2
+color = Color(0, 0, 0, 1)
+metadata/_edit_use_anchors_ = true
+
+[node name="CanvasLayer2" type="CanvasLayer" parent="ScreenShader"]
+editor_description = "Distortion effects"
+
+[node name="ColorRect" type="ColorRect" parent="ScreenShader/CanvasLayer2"]
+material = SubResource("ShaderMaterial_gsqgo")
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
diff --git a/player/player.tscn b/player/player.tscn
index 05c70b4..f93e270 100644
--- a/player/player.tscn
+++ b/player/player.tscn
@@ -27,4 +27,4 @@ position = Vector2(4, 0)
 target_position = Vector2(0, -8.1)
 
 [node name="Polygon2D" type="Polygon2D" parent="."]
-polygon = PackedVector2Array(-7, -7, -7, 7, 7, 7, 7, -7)
+polygon = PackedVector2Array(-9, -9, -9, 9, 9, 9, 9, -9)
diff --git a/project.godot b/project.godot
index 9219ca7..a95a271 100644
--- a/project.godot
+++ b/project.godot
@@ -13,6 +13,7 @@ config_version=5
 config/name="rectangular"
 run/main_scene="res://main.tscn"
 config/features=PackedStringArray("4.3", "Forward Plus")
+boot_splash/bg_color=Color(0, 0, 0, 1)
 config/icon="res://icon.svg"
 
 [debug]
@@ -23,7 +24,7 @@ settings/stdout/print_fps=true
 
 window/size/viewport_width=800
 window/size/viewport_height=450
-window/stretch/mode="canvas_items"
+window/stretch/mode="viewport"
 window/stretch/aspect="expand"
 
 [input]