Improve dropdown styling

Changes the text color and style of the dropdowns to have no mouse hover
interaction and more contrast. The dropdown popup menu is unaffected (it will
still use the editor theme)

Fixes #203

Author: DoomTas3r

addons/block_code/ui/blocks/utilities/parameter_input/parameter_input.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=11 format=3 uid="uid://cjvxs6euc6xbm"]
+[gd_scene load_steps=12 format=3 uid="uid://cjvxs6euc6xbm"]
 
 [ext_resource type="Script" path="res://addons/block_code/ui/blocks/utilities/parameter_input/parameter_input.gd" id="1_rgmxn"]
 [ext_resource type="PackedScene" uid="uid://c7puyxpqcq6xo" path="res://addons/block_code/ui/blocks/utilities/drag_drop_area/drag_drop_area.tscn" id="2_05gck"]
@@ -19,10 +19,17 @@ corner_radius_bottom_left = 40
 
 [sub_resource type="StyleBoxEmpty" id="StyleBoxEmpty_5hq7f"]
 
-[sub_resource type="StyleBoxEmpty" id="StyleBoxEmpty_fjquj"]
+[sub_resource type="StyleBoxFlat" id="StyleBoxFlat_7m75r"]
+bg_color = Color(1, 1, 1, 0.501961)
+corner_radius_top_left = 5
+corner_radius_top_right = 5
+corner_radius_bottom_right = 5
+corner_radius_bottom_left = 5
 
 [sub_resource type="StyleBoxEmpty" id="StyleBoxEmpty_e7f0k"]
 
+[sub_resource type="StyleBoxEmpty" id="StyleBoxEmpty_fjquj"]
+
 [node name="ParameterInput" type="MarginContainer"]
 anchors_preset = 15
 anchor_right = 1.0
@@ -95,7 +102,15 @@ visible = false
 custom_minimum_size = Vector2(40, 0)
 layout_mode = 2
 tooltip_text = "Parameter"
-theme_override_styles/normal = SubResource("StyleBoxEmpty_fjquj")
+theme_override_colors/font_hover_pressed_color = Color(0.117647, 0.117647, 0.117647, 1)
+theme_override_colors/font_hover_color = Color(0.117647, 0.117647, 0.117647, 1)
+theme_override_colors/font_pressed_color = Color(0.117647, 0.117647, 0.117647, 1)
+theme_override_colors/font_focus_color = Color(0.117647, 0.117647, 0.117647, 1)
+theme_override_colors/font_color = Color(0.117647, 0.117647, 0.117647, 1)
+theme_override_styles/focus = SubResource("StyleBoxFlat_7m75r")
+theme_override_styles/hover = SubResource("StyleBoxFlat_7m75r")
+theme_override_styles/pressed = SubResource("StyleBoxFlat_7m75r")
+theme_override_styles/normal = SubResource("StyleBoxFlat_7m75r")
 action_mode = 1
 fit_to_longest_item = false
 
@@ -193,9 +208,14 @@ theme_override_constants/margin_left = 8
 unique_name_in_owner = true
 custom_minimum_size = Vector2(60, 0)
 layout_mode = 2
-theme_override_colors/font_focus_color = Color(0, 0, 0, 1)
-theme_override_colors/font_color = Color(0, 0, 0, 1)
+theme_override_colors/font_hover_pressed_color = Color(0.117647, 0.117647, 0.117647, 1)
+theme_override_colors/font_hover_color = Color(0.117647, 0.117647, 0.117647, 1)
+theme_override_colors/font_pressed_color = Color(0.117647, 0.117647, 0.117647, 1)
+theme_override_colors/font_focus_color = Color(0.117647, 0.117647, 0.117647, 1)
+theme_override_colors/font_color = Color(0.117647, 0.117647, 0.117647, 1)
 theme_override_styles/focus = SubResource("StyleBoxEmpty_e7f0k")
+theme_override_styles/hover = SubResource("StyleBoxEmpty_6oowp")
+theme_override_styles/pressed = SubResource("StyleBoxEmpty_6oowp")
 theme_override_styles/normal = SubResource("StyleBoxEmpty_fjquj")
 action_mode = 1
 selected = 0