rendering fixes and menu

scenes/filter/pixelize.tscn

@@ -0,0 +1,22 @@
+[gd_scene load_steps=3 format=3 uid="uid://dthcpgxk5b74y"]
+
+[ext_resource type="Shader" uid="uid://dgstw8crggyti" path="res://shaders/pixelate.gdshader" id="1_tt4dp"]
+
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_83vy4"]
+shader = ExtResource("1_tt4dp")
+shader_parameter/texture_mode = 1
+shader_parameter/quantize_size = 1
+shader_parameter/snap_to_world = false
+shader_parameter/limit_subpixels = true
+
+[node name="Pixelize" type="CanvasLayer"]
+
+[node name="ColorRect" type="ColorRect" parent="."]
+material = SubResource("ShaderMaterial_83vy4")
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+mouse_filter = 1
+metadata/_edit_lock_ = true