Use contrast_color_1 for now (#2239)

Make use of a color that exists in 4.2 and 4.3.

Author: Jowan-Spooner

addons/dialogic/Editor/Common/hint_tooltip_icon.gd

@@ -5,5 +5,5 @@ extends TextureRect
 
 func _ready():
 	texture = get_theme_icon("NodeInfo", "EditorIcons")
-	modulate = get_theme_color("icon_normal_color", "Editor")
+	modulate = get_theme_color("contrast_color_1", "Editor")
 	tooltip_text = hint_text

addons/dialogic/Editor/Events/EventBlock/event_block.gd

@@ -64,9 +64,9 @@ func initialize_ui() -> void:
 
 	# Expand Button
 	%ToggleBodyVisibilityButton.icon = get_theme_icon("CodeFoldedRightArrow", "EditorIcons")
-	%ToggleBodyVisibilityButton.modulate = get_theme_color("icon_normal_color", "Editor")
-	%ToggleBodyVisibilityButton.set("theme_override_colors/icon_normal_color", get_theme_color("icon_normal_color", "Editor"))
-	%ToggleBodyVisibilityButton.set("theme_override_colors/icon_pressed_color", get_theme_color("icon_normal_color", "Editor"))
+	%ToggleBodyVisibilityButton.modulate = get_theme_color("contrast_color_1", "Editor")
+	%ToggleBodyVisibilityButton.set("theme_override_colors/icon_normal_color", get_theme_color("contrast_color_1", "Editor"))
+	%ToggleBodyVisibilityButton.set("theme_override_colors/icon_pressed_color", get_theme_color("contrast_color_1", "Editor"))
 
 	# Icon Panel
 	%IconPanel.tooltip_text = resource.event_name