:recycle: Refactor the color settings

Replace constants in script by modulation set through editor.

godot/component/entity/line/Line.gd

@@ -3,13 +3,12 @@ extends Path2D
 
 const THICK = 10
 const RAYON = THICK / 2
-const MAIN_COLOR = Color8(255, 0, 0)
 
 
 func _draw():
-	draw_circle(curve.get_point_position(0), RAYON, MAIN_COLOR)
+	draw_circle(curve.get_point_position(0), RAYON, Color.WHITE)
 	for k in range(curve.get_point_count() - 1):
 		var from = curve.get_point_position(k)
 		var target = curve.get_point_position(k + 1)
-		draw_line(from, target, MAIN_COLOR, THICK, true)
-		draw_circle(target, RAYON, MAIN_COLOR)
+		draw_line(from, target, Color.WHITE, THICK, true)
+		draw_circle(target, RAYON, Color.WHITE)

godot/component/entity/star/Star.gd

@@ -4,11 +4,10 @@ extends PathFollow2D
 
 const SPEED = 200
 const RAYON = 20
-const MAIN_COLOR = Color8(252, 0, 20)
 
 
 func _physics_process(delta):
 	progress += SPEED * delta
 
 func _draw():
-	draw_circle(Vector2.ZERO, RAYON, MAIN_COLOR)
+	draw_circle(Vector2.ZERO, RAYON, Color.WHITE)

godot/world.tscn

@@ -8,6 +8,7 @@
 [node name="Lines" type="Node2D" parent="."]
 
 [node name="BassLine" parent="Lines" instance=ExtResource("3_l2vrj")]
+modulate = Color(1, 0, 1, 1)
 
 [node name="ProtoStar" parent="Lines/BassLine" instance=ExtResource("1_wa4bn")]
 position = Vector2(246, 1065)