style(ui): the last hand-rolled colours join the theme

Five screen titles in the main menu were white on a black outline and the HUD
used Color.BLACK outlines and a hardcoded grey. That was the old comic theme's
contrast trick, and next to a papaya wordmark it read as a different game's
menu. They take UITheme.PAPAYA, INK and PAPER_DIM now, so every screen —
main menu, pause menu, character picker, settings, HUD and rig lab — is one
palette with one source.

Co-Authored-By: Claude Opus 5 <[email protected]>

ui/main_menu/main_menu.gd

@@ -97,8 +97,8 @@ func _ready() -> void:
 	var ls_title = Label.new()
 	ls_title.text = "Select Level"
 	ls_title.add_theme_font_size_override("font_size", 64)
-	ls_title.add_theme_color_override("font_color", Color(1, 1, 1))
+	ls_title.add_theme_color_override("font_color", UITheme.PAPAYA)
-	ls_title.add_theme_color_override("font_outline_color", Color(0, 0, 0))
+	ls_title.add_theme_color_override("font_outline_color", UITheme.INK)
 	ls_title.add_theme_constant_override("outline_size", 8)
 	_level_selector_panel.add_child(ls_title)
 	
@@ -131,8 +131,8 @@ func _ready() -> void:
 	var mp_title = Label.new()
 	mp_title.text = "Multiplayer"
 	mp_title.add_theme_font_size_override("font_size", 64)
-	mp_title.add_theme_color_override("font_color", Color(1, 1, 1))
+	mp_title.add_theme_color_override("font_color", UITheme.PAPAYA)
-	mp_title.add_theme_color_override("font_outline_color", Color(0, 0, 0))
+	mp_title.add_theme_color_override("font_outline_color", UITheme.INK)
 	mp_title.add_theme_constant_override("outline_size", 8)
 	_multiplayer_panel.add_child(mp_title)
 	
@@ -159,8 +159,8 @@ func _ready() -> void:
 	var dc_title = Label.new()
 	dc_title.text = "Direct Connect"
 	dc_title.add_theme_font_size_override("font_size", 64)
-	dc_title.add_theme_color_override("font_color", Color(1, 1, 1))
+	dc_title.add_theme_color_override("font_color", UITheme.PAPAYA)
-	dc_title.add_theme_color_override("font_outline_color", Color(0, 0, 0))
+	dc_title.add_theme_color_override("font_outline_color", UITheme.INK)
 	dc_title.add_theme_constant_override("outline_size", 8)
 	_direct_connect_panel.add_child(dc_title)
 	
@@ -226,8 +226,8 @@ func _ready() -> void:
 	var hl_title = Label.new()
 	hl_title.text = "Host Lobby - Select Level"
 	hl_title.add_theme_font_size_override("font_size", 64)
-	hl_title.add_theme_color_override("font_color", Color(1, 1, 1))
+	hl_title.add_theme_color_override("font_color", UITheme.PAPAYA)
-	hl_title.add_theme_color_override("font_outline_color", Color(0, 0, 0))
+	hl_title.add_theme_color_override("font_outline_color", UITheme.INK)
 	hl_title.add_theme_constant_override("outline_size", 8)
 	hl_left.add_child(hl_title)
 	
@@ -271,7 +271,7 @@ func _ready() -> void:
 	var pl_title = Label.new()
 	pl_title.text = "Players Connected"
 	pl_title.add_theme_font_size_override("font_size", 48)
-	pl_title.add_theme_color_override("font_outline_color", Color(0, 0, 0))
+	pl_title.add_theme_color_override("font_outline_color", UITheme.INK)
 	pl_title.add_theme_constant_override("outline_size", 8)
 	hl_right.add_child(pl_title)
 	
@@ -279,7 +279,7 @@ func _ready() -> void:
 	if get_node_or_null("/root/NetworkManager"):
 		port_label.text = "Port: " + str(get_node("/root/NetworkManager").DEFAULT_PORT)
 	port_label.add_theme_font_size_override("font_size", 24)
-	port_label.add_theme_color_override("font_color", Color(0.7, 0.7, 0.7))
+	port_label.add_theme_color_override("font_color", UITheme.PAPER_DIM)
 	hl_right.add_child(port_label)
 	
 	_host_lobby_players_list = ItemList.new()
@@ -352,7 +352,7 @@ func _build_level_card(parent: Container, title: String, scene_path: String, gra
 	var lbl = Label.new()
 	lbl.text = title
 	lbl.add_theme_font_size_override("font_size", 32)
-	lbl.add_theme_color_override("font_color", Color.WHITE)
+	lbl.add_theme_color_override("font_color", UITheme.PAPER)
 	lbl.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
 	lbl.set_anchors_preset(Control.PRESET_FULL_RECT)
 	overlay.add_child(lbl)

ui/match_hud.gd

@@ -33,7 +33,7 @@ func _ready() -> void:
 	
 	_time_label = Label.new()
 	_time_label.add_theme_font_size_override("font_size", 48)
-	_time_label.add_theme_color_override("font_outline_color", Color.BLACK)
+	_time_label.add_theme_color_override("font_outline_color", UITheme.INK)
 	_time_label.add_theme_constant_override("outline_size", 8)
 	top_hbox.add_child(_time_label)
 	
@@ -48,7 +48,7 @@ func _ready() -> void:
 	_leader_label = Label.new()
 	_leader_label.text = "Leader: None"
 	_leader_label.add_theme_font_size_override("font_size", 32)
-	_leader_label.add_theme_color_override("font_outline_color", Color.BLACK)
+	_leader_label.add_theme_color_override("font_outline_color", UITheme.INK)
 	_leader_label.add_theme_constant_override("outline_size", 8)
 	top_hbox.add_child(_leader_label)
 	
@@ -131,7 +131,7 @@ func _populate_scoreboard_headers() -> void:
 		var l = Label.new()
 		l.text = h
 		l.add_theme_font_size_override("font_size", 24)
-		l.add_theme_color_override("font_color", Color(0.7, 0.7, 0.7))
+		l.add_theme_color_override("font_color", UITheme.PAPER_DIM)
 		_scoreboard_grid.add_child(l)
 
 func _update_hud() -> void:
@@ -204,7 +204,7 @@ func _on_killfeed_event(victim: String, killer: String, weapon: String, v_color:
 		l.text = "[color=#%s]%s[/color] [%s] [color=#%s]%s[/color]" % [k_color, killer, weapon, v_color, victim]
 	
 	l.add_theme_font_size_override("normal_font_size", 20)
-	l.add_theme_color_override("font_outline_color", Color.BLACK)
+	l.add_theme_color_override("font_outline_color", UITheme.INK)
 	l.add_theme_constant_override("outline_size", 4)
 	_killfeed_vbox.add_child(l)