diff --git a/src/Tools/Bucket.gd b/src/Tools/Bucket.gd
index e4a9b34da..363cd853d 100644
--- a/src/Tools/Bucket.gd
+++ b/src/Tools/Bucket.gd
@@ -1,6 +1,7 @@
 extends BaseTool
 
 
+var _prev_mode := 0
 var _pattern : Patterns.Pattern
 var _fill_area := 0
 var _fill_with := 0
@@ -12,6 +13,19 @@ func _ready() -> void:
 	update_pattern()
 
 
+func _input(event: InputEvent) -> void:
+	var options : OptionButton = $FillAreaOptions
+
+	if event.is_action_pressed("ctrl"):
+		_prev_mode = options.selected
+	if event.is_action("ctrl"):
+		options.selected = _prev_mode ^ 1
+		_fill_area = options.selected
+	if event.is_action_released("ctrl"):
+		options.selected = _prev_mode
+		_fill_area = options.selected
+
+
 func _on_FillAreaOptions_item_selected(index : int) -> void:
 	_fill_area = index
 	update_config()
diff --git a/src/Tools/ColorPicker.gd b/src/Tools/ColorPicker.gd
index d37bc86ac..cf1e20a74 100644
--- a/src/Tools/ColorPicker.gd
+++ b/src/Tools/ColorPicker.gd
@@ -1,9 +1,23 @@
 extends BaseTool
 
 
+var _prev_mode := 0
 var _color_slot := 0
 
 
+func _input(event: InputEvent) -> void:
+	var options : OptionButton = $ColorPicker/Options
+
+	if event.is_action_pressed("ctrl"):
+		_prev_mode = options.selected
+	if event.is_action("ctrl"):
+		options.selected = _prev_mode ^ 1
+		_color_slot = options.selected
+	if event.is_action_released("ctrl"):
+		options.selected = _prev_mode
+		_color_slot = options.selected
+
+
 func _on_Options_item_selected(id : int) -> void:
 	_color_slot = id
 	update_config()
diff --git a/src/Tools/Pencil.gd b/src/Tools/Pencil.gd
index 1e0e7a0e1..327ee78af 100644
--- a/src/Tools/Pencil.gd
+++ b/src/Tools/Pencil.gd
@@ -1,6 +1,7 @@
 extends "res://src/Tools/Draw.gd"
 
 
+var _prev_mode := false
 var _last_position := Vector2.INF
 var _changed := false
 var _overwrite := false
@@ -35,6 +36,19 @@ func _on_FillInside_toggled(button_pressed):
 	save_config()
 
 
+func _input(event: InputEvent) -> void:
+	var overwrite_button : CheckBox = $Overwrite
+
+	if event.is_action_pressed("ctrl"):
+		_prev_mode = overwrite_button.pressed
+	if event.is_action("ctrl"):
+		overwrite_button.pressed = !_prev_mode
+		_overwrite = overwrite_button.pressed
+	if event.is_action_released("ctrl"):
+		overwrite_button.pressed = _prev_mode
+		_overwrite = overwrite_button.pressed
+
+
 func get_config() -> Dictionary:
 	var config := .get_config()
 	config["overwrite"] = _overwrite
diff --git a/src/Tools/Shading.gd b/src/Tools/Shading.gd
index 671db4b23..d5e2b9523 100644
--- a/src/Tools/Shading.gd
+++ b/src/Tools/Shading.gd
@@ -5,6 +5,7 @@ enum ShadingMode {SIMPLE, HUE_SHIFTING}
 enum LightenDarken {LIGHTEN, DARKEN}
 
 
+var _prev_mode := 0
 var _last_position := Vector2.INF
 var _changed := false
 var _shading_mode : int = ShadingMode.SIMPLE
@@ -35,10 +36,10 @@ class LightenDarkenOp extends Drawer.ColorOp:
 		if dst.a == 0:
 			return dst
 		if shading_mode == ShadingMode.SIMPLE:
-			if strength > 0:
+			if lighten_or_darken == LightenDarken.LIGHTEN:
 				dst = dst.lightened(strength)
-			elif strength < 0:
-				dst = dst.darkened(-strength)
+			else:
+				dst = dst.darkened(strength)
 		else:
 			var hue_shift := hue_amount / 360.0
 			var sat_shift := sat_amount / 100.0
@@ -112,6 +113,21 @@ func _init() -> void:
 	_drawer.color_op = LightenDarkenOp.new()
 
 
+func _input(event: InputEvent) -> void:
+	var options : OptionButton = $LightenDarken
+
+	if event.is_action_pressed("ctrl"):
+		_prev_mode = options.selected
+	if event.is_action("ctrl"):
+		options.selected = _prev_mode ^ 1
+		_mode = options.selected
+		_drawer.color_op.lighten_or_darken = _mode
+	if event.is_action_released("ctrl"):
+		options.selected = _prev_mode
+		_mode = options.selected
+		_drawer.color_op.lighten_or_darken = _mode
+
+
 func _on_ShadingMode_item_selected(id : int) -> void:
 	_shading_mode = id
 	_drawer.color_op.shading_mode = id
@@ -191,8 +207,7 @@ func update_config() -> void:
 
 
 func update_strength() -> void:
-	var factor = 1 if _mode == 0 else -1
-	_strength = _amount * factor / 100.0
+	_strength = _amount / 100.0
 
 	_drawer.color_op.hue_amount = _hue_amount
 	_drawer.color_op.sat_amount = _sat_amount
diff --git a/src/Tools/Zoom.gd b/src/Tools/Zoom.gd
index 1e737c50c..acef296f7 100644
--- a/src/Tools/Zoom.gd
+++ b/src/Tools/Zoom.gd
@@ -2,7 +2,7 @@ extends BaseTool
 
 
 var _relative : Vector2
-var _prev_zoom_mode := 0
+var _prev_mode := 0
 var _zoom_mode := 0
 
 
@@ -11,12 +11,12 @@ func _input(event: InputEvent) -> void:
 		_relative = event.relative
 
 	if event.is_action_pressed("ctrl"):
-		_prev_zoom_mode = $ModeOptions.selected
+		_prev_mode = $ModeOptions.selected
 	if event.is_action("ctrl"):
-		$ModeOptions.selected = _prev_zoom_mode ^ 1
+		$ModeOptions.selected = _prev_mode ^ 1
 		_zoom_mode = $ModeOptions.selected
 	if event.is_action_released("ctrl"):
-		$ModeOptions.selected = _prev_zoom_mode
+		$ModeOptions.selected = _prev_mode
 		_zoom_mode = $ModeOptions.selected
 
 
diff --git a/src/UI/UI.tscn b/src/UI/UI.tscn
index ad40cf9e4..3a06e6d7f 100644
--- a/src/UI/UI.tscn
+++ b/src/UI/UI.tscn
@@ -136,9 +136,7 @@ size_flags_horizontal = 4
 size_flags_vertical = 0
 script = ExtResource( 1 )
 
-[node name="RectSelect" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="RectSelect" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_right = 24.0
 margin_bottom = 24.0
 rect_min_size = Vector2( 24, 24 )
@@ -189,9 +187,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="EllipseSelect" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="EllipseSelect" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 28.0
 margin_right = 24.0
 margin_bottom = 52.0
@@ -243,9 +239,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="PolygonSelect" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="PolygonSelect" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 56.0
 margin_right = 24.0
 margin_bottom = 80.0
@@ -297,9 +291,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="ColorSelect" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="ColorSelect" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 84.0
 margin_right = 24.0
 margin_bottom = 108.0
@@ -351,9 +343,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="MagicWand" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="MagicWand" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 112.0
 margin_right = 24.0
 margin_bottom = 136.0
@@ -405,9 +395,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="Lasso" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="Lasso" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 140.0
 margin_right = 24.0
 margin_bottom = 164.0
@@ -459,9 +447,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="Move" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="Move" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 168.0
 margin_right = 24.0
 margin_bottom = 192.0
@@ -513,9 +499,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="Zoom" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="Zoom" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 196.0
 margin_right = 24.0
 margin_bottom = 220.0
@@ -567,9 +551,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="Pan" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="Pan" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 224.0
 margin_right = 24.0
 margin_bottom = 248.0
@@ -621,9 +603,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="ColorPicker" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="ColorPicker" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 252.0
 margin_right = 24.0
 margin_bottom = 276.0
@@ -675,9 +655,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="Pencil" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="Pencil" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 280.0
 margin_right = 24.0
 margin_bottom = 304.0
@@ -728,9 +706,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="Eraser" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="Eraser" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 308.0
 margin_right = 24.0
 margin_bottom = 332.0
@@ -781,9 +757,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="Bucket" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="Bucket" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 336.0
 margin_right = 24.0
 margin_bottom = 360.0
@@ -835,9 +809,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="Shading" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="Shading" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 364.0
 margin_right = 24.0
 margin_bottom = 388.0
@@ -889,9 +861,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="LineTool" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="LineTool" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 392.0
 margin_right = 24.0
 margin_bottom = 416.0
@@ -943,9 +913,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="RectangleTool" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="RectangleTool" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 420.0
 margin_right = 24.0
 margin_bottom = 444.0
@@ -997,9 +965,7 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
-[node name="EllipseTool" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=[
-"UIButtons",
-]]
+[node name="EllipseTool" type="Button" parent="ToolsAndCanvas/ToolPanel/MarginContainer/PanelContainer/ToolButtons" groups=["UIButtons"]]
 margin_top = 448.0
 margin_right = 24.0
 margin_bottom = 472.0