Follow the GDScript style guide in every script

- Types on every parameter, return value and variable, and snake_case names
  (the player name limit is the constant MAX_NAME_LENGTH).
- Spelling fixes: *_triggered, character_selected, separator, caught_errors.
  The server's catched_errors key stays as the server sends it.
- Signals are connected with signal.connect() instead of by name.
- Code is ordered signals, constants, exported vars, vars, @onready vars,
  functions, with @onready on one line and two blank lines between functions.
- Every script starts with a ## description. Template comments, old LOC notes
  and commented-out code are gone, apart from the local play code.
- Lines are at most 100 characters, apart from the local play path.
- The screenshot tour turns off the blinking text cursor so pictures match.

player_row.gd

@@ -1,21 +1,6 @@
 class_name PlayerRow
 extends Control
 
-@onready
-var player_name_field: Label = %Name
-
-@onready
-var add_button: Button = %AddPoint
-
-@onready
-var minus_button: Button = %RemovePoint
-
-@onready
-var character: TextureButton = %Character
-
-@onready
-var remove_player: TextureButton = %RemovePlayer
-
 signal change_character_clicked
 signal player_removed
 
@@ -26,7 +11,13 @@ var player_object: PlayerObject
 ## gives this player a point and Ctrl+Alt+<list_index + 1> takes one away.
 var list_index: int
 
-# Called when the node enters the scene tree for the first time.
+@onready var player_name_field: Label = %Name
+@onready var add_button: Button = %AddPoint
+@onready var minus_button: Button = %RemovePoint
+@onready var character: TextureButton = %Character
+@onready var remove_player: TextureButton = %RemovePlayer
+
+
 func _ready() -> void:
 	add_button.pressed.connect(add_point)
 	add_button.set_shortcut(create_button_shortcut(list_index, false))
@@ -37,42 +28,51 @@ func _ready() -> void:
 	update_score()
 	set_player_character()
 
+
 func _process(delta: float) -> void:
 	remove_player.visible = Settings.edit_players
 
+
 func create_button_shortcut(index: int, ctrl_pressed: bool) -> Shortcut:
 	var button_shortcut: Shortcut = Shortcut.new()
-	var button_event : InputEventKey = InputEventKey.new()
+	var button_event: InputEventKey = InputEventKey.new()
 	button_event.keycode = KEY_1 + index
 	button_event.alt_pressed = true
 	button_event.ctrl_pressed = ctrl_pressed
 	button_shortcut.events.append(button_event)
 	return button_shortcut
 
+
 func add_point() -> void:
 	player_object.add_point()
 	update_score()
 
+
 func minus_point() -> void:
 	player_object.minus_point()
 	update_score()
- 
+
+
 func change_character() -> void:
 	change_character_clicked.emit()
 
+
 func new_character_selected(character_texture: ImageTexture) -> void:
 	GameLog.debug("Back in player list with new")
 	player_object.character = character_texture
 	set_player_character()
 
+
 func set_player_character() -> void:
 	character.custom_minimum_size = Vector2(80, 40)
 	character.ignore_texture_size = true
 	character.stretch_mode = TextureButton.STRETCH_KEEP_ASPECT_CENTERED
 	character.texture_normal = player_object.character
 
+
 func update_score() -> void:
 	if OS.has_feature("debug"):
-		player_name_field.text = str(list_index + 1) + " " + player_object.player_name + ": " + str(player_object.player_score)
+		player_name_field.text = "%d %s: %d" % [list_index + 1, player_object.player_name,
+				player_object.player_score]
 	else:
 		player_name_field.text = player_object.player_name + ": " + str(player_object.player_score)