Some style fixes

game/menu/ingame/weapon_selection_screen.tscn

@@ -1,6 +1,7 @@
-[gd_scene load_steps=2 format=3 uid="uid://cv122gw47cnun"]
+[gd_scene load_steps=3 format=3 uid="uid://cv122gw47cnun"]
 
 [ext_resource type="Script" uid="uid://6isk1tmc2ik1" path="res://game/menu/ingame/weapon_selection_screen.gd" id="1_hl2ql"]
+[ext_resource type="Theme" uid="uid://dtnd3tqllufey" path="res://styles/menu_button.tres" id="2_mi7cn"]
 
 [node name="WeaponSelectionScreen" type="Control"]
 layout_mode = 3
@@ -28,6 +29,7 @@ alignment = 1
 layout_mode = 2
 size_flags_horizontal = 4
 size_flags_vertical = 0
+theme = ExtResource("2_mi7cn")
 text = "Select your first weapon"
 
 [node name="WeaponSelectors" type="HBoxContainer" parent="MarginContainer/VBoxContainer"]