diff --git a/assets/reactions/agcl_p_na2s.tres b/assets/reactions/agcl_p_na2s.tres
index ea8efd4..20794bd 100644
--- a/assets/reactions/agcl_p_na2s.tres
+++ b/assets/reactions/agcl_p_na2s.tres
@@ -1,4 +1,4 @@
-[gd_resource type="Resource" script_class="Reaction" load_steps=11 format=3 uid="uid://b84essimpfmee"]
+[gd_resource type="Resource" script_class="Reaction" format=3 uid="uid://b84essimpfmee"]
 
 [ext_resource type="Script" uid="uid://bb8o8l6u6fiai" path="res://src/resources/reaction_substance.gd" id="1_rvq0y"]
 [ext_resource type="Script" uid="uid://dwks86y6383p4" path="res://src/resources/reaction.gd" id="2_oqih4"]
diff --git a/assets/reagents/HCl.tres b/assets/reagents/HCl.tres
index af6703e..c8ae847 100644
--- a/assets/reagents/HCl.tres
+++ b/assets/reagents/HCl.tres
@@ -1,6 +1,7 @@
-[gd_resource type="Resource" script_class="Reagent" load_steps=3 format=3 uid="uid://cxpovcqviqurr"]
+[gd_resource type="Resource" script_class="Reagent" format=3 uid="uid://cxpovcqviqurr"]
 
 [ext_resource type="Script" uid="uid://bditqax8ibmxw" path="res://src/resources/reagent.gd" id="1_5si53"]
+[ext_resource type="PackedScene" uid="uid://cw6v8kbi76qak" path="res://scenes/substance_jar.tscn" id="2_dby88"]
 [ext_resource type="Resource" uid="uid://bj3cdfwvgksee" path="res://assets/substances/HCl.tres" id="2_no7s4"]
 
 [resource]
diff --git a/project.godot b/project.godot
index e7c25d1..a030462 100644
--- a/project.godot
+++ b/project.godot
@@ -24,6 +24,7 @@ config/icon="res://icon.svg"
 GuiSignalBus="*res://src/gui_signal_bus.gd"
 ReactionRegistry="*res://src/reaction_registry.gd"
 LabRuntime="*uid://b00hrs2a68cpp"
+Tooltip="*uid://dtpy85f2ycbur"
 
 [global_group]
 
diff --git a/scenes/flask.tscn b/scenes/flask.tscn
index 7e8f14e..441b56e 100644
--- a/scenes/flask.tscn
+++ b/scenes/flask.tscn
@@ -51,6 +51,7 @@ shadow_mesh = SubResource("ArrayMesh_1ouf4")
 resource_local_to_scene = true
 render_priority = 0
 shader = ExtResource("4_ailwx")
+shader_parameter/albedo_color = Color(0, 0, 0, 1)
 shader_parameter/fill = 0.8999999798832
 shader_parameter/wave_intensity = 0.0
 
diff --git a/scenes/spoon.tscn b/scenes/spoon.tscn
index e388eef..4364eaf 100644
--- a/scenes/spoon.tscn
+++ b/scenes/spoon.tscn
@@ -1,4 +1,4 @@
-[gd_scene load_steps=10 format=3 uid="uid://emm545mj0kba"]
+[gd_scene format=3 uid="uid://emm545mj0kba"]
 
 [ext_resource type="ArrayMesh" uid="uid://cdvben7q8oxgf" path="res://assets/meshes/spoon.res" id="1_l12hh"]
 [ext_resource type="Script" uid="uid://bjnv2g1ni0525" path="res://src/drag/draggable_object.gd" id="1_r8mox"]
@@ -14,17 +14,17 @@ albedo_texture = ExtResource("3_ckduo")
 [sub_resource type="BoxShape3D" id="BoxShape3D_r8mox"]
 size = Vector3(0.26538086, 0.1484375, 1.6950684)
 
-[node name="Spoon" type="Area3D" node_paths=PackedStringArray("interactible")]
+[node name="Spoon" type="Area3D" unique_id=926622416 node_paths=PackedStringArray("interactible")]
 collision_layer = 6
 script = ExtResource("1_r8mox")
 interactible = NodePath("Interactible")
 mask = PackedStringArray("flask", "solid_source")
 
-[node name="MeshInstance3D" type="MeshInstance3D" parent="."]
+[node name="MeshInstance3D" type="MeshInstance3D" parent="." unique_id=608330635]
 transform = Transform3D(0.1, 0, 0, 0, 0.1, 0, 0, 0, 0.1, 0, 0.07224345, 0)
 mesh = ExtResource("1_l12hh")
 
-[node name="SpoonFill" type="MeshInstance3D" parent="."]
+[node name="SpoonFill" type="MeshInstance3D" parent="." unique_id=209337706]
 transform = Transform3D(0.1, 0, 0, 0, 0.1, 0, 0, 0, 0.1, 0, 0.07224345, -0.66295564)
 visible = false
 material_override = SubResource("StandardMaterial3D_1r65c")
@@ -32,11 +32,11 @@ mesh = ExtResource("4_5mau7")
 script = ExtResource("5_33jiv")
 display_type = 1
 
-[node name="CollisionShape3D" type="CollisionShape3D" parent="."]
+[node name="CollisionShape3D" type="CollisionShape3D" parent="." unique_id=537844857]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.07224345, 0)
 shape = SubResource("BoxShape3D_r8mox")
 
-[node name="Interactible" type="ConfirmationDialog" parent="."]
+[node name="Interactible" type="ConfirmationDialog" parent="." unique_id=706618502]
 title = ""
 ok_button_text = "Подтвердить"
 cancel_button_text = "Отменить"
@@ -44,7 +44,7 @@ script = ExtResource("3_r8ydw")
 instant = true
 metadata/_custom_type_script = "uid://bl0ojhc0thk1p"
 
-[node name="Interaction" type="Node" parent="Interactible"]
+[node name="Interaction" type="Node" parent="Interactible" unique_id=463123349]
 script = ExtResource("4_fyayl")
 
 [connection signal="interacted" from="Interactible" to="Interactible/Interaction" method="_on_interactible_interacted"]
diff --git a/scenes/substance_jar.tscn b/scenes/substance_jar.tscn
index 5cc4214..50f8f9a 100644
--- a/scenes/substance_jar.tscn
+++ b/scenes/substance_jar.tscn
@@ -1,4 +1,4 @@
-[gd_scene load_steps=9 format=3 uid="uid://cw6v8kbi76qak"]
+[gd_scene format=3 uid="uid://cw6v8kbi76qak"]
 
 [ext_resource type="Script" uid="uid://bjnv2g1ni0525" path="res://src/drag/draggable_object.gd" id="1_o7vug"]
 [ext_resource type="ArrayMesh" uid="uid://dddqboph2ygmw" path="res://assets/meshes/jar.res" id="2_o7vug"]
@@ -15,49 +15,49 @@ transparency = 1
 height = 0.5024414
 radius = 0.22460938
 
-[node name="SubstanceJar" type="Area3D" node_paths=PackedStringArray("interactible")]
+[node name="SubstanceJar" type="Area3D" unique_id=904812958 node_paths=PackedStringArray("interactible")]
 collision_layer = 5
 script = ExtResource("1_o7vug")
 interactible = NodePath("Interaction")
 mask = PackedStringArray("flask")
 
-[node name="Jar" type="MeshInstance3D" parent="."]
+[node name="Jar" type="MeshInstance3D" parent="." unique_id=985146813]
 transform = Transform3D(0.2, 0, 0, 0, 0.2, 0, 0, 0, 0.2, 0, 0, 0)
 mesh = ExtResource("2_o7vug")
 
-[node name="JarFill" type="MeshInstance3D" parent="."]
+[node name="JarFill" type="MeshInstance3D" parent="." unique_id=1364277535]
 transform = Transform3D(0.2, 0, 0, 0, 0.2, 0, 0, 0, 0.2, 0, 0, 0)
 material_override = SubResource("StandardMaterial3D_pcpcb")
 mesh = ExtResource("6_kfk5m")
 
-[node name="DragArea" type="CollisionShape3D" parent="."]
+[node name="DragArea" type="CollisionShape3D" parent="." unique_id=960002167]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.25, 0)
 shape = SubResource("CylinderShape3D_kfk5m")
 
-[node name="SubstanceData" type="Node" parent="."]
+[node name="SubstanceData" type="Node" parent="." unique_id=1379108671]
 script = ExtResource("7_ymvgp")
 
-[node name="Interaction" type="ConfirmationDialog" parent="."]
+[node name="Interaction" type="ConfirmationDialog" parent="." unique_id=1225848265]
 title = "Добавить вещество?"
 ok_button_text = "Добавить"
 cancel_button_text = "Не добавлять"
 script = ExtResource("5_o7vug")
 
-[node name="HBoxContainer" type="HBoxContainer" parent="Interaction"]
+[node name="HBoxContainer" type="HBoxContainer" parent="Interaction" unique_id=1504866588]
 offset_right = 40.0
 offset_bottom = 40.0
 
-[node name="ProgressBar" type="HSlider" parent="Interaction/HBoxContainer"]
+[node name="ProgressBar" type="HSlider" parent="Interaction/HBoxContainer" unique_id=1037338095]
 layout_mode = 2
 size_flags_horizontal = 3
 allow_greater = true
 
-[node name="SpinBox" type="SpinBox" parent="Interaction/HBoxContainer"]
+[node name="SpinBox" type="SpinBox" parent="Interaction/HBoxContainer" unique_id=194740698]
 layout_mode = 2
 allow_greater = true
 suffix = "мг."
 
-[node name="Interaction" type="Node" parent="Interaction"]
+[node name="Interaction" type="Node" parent="Interaction" unique_id=729724369]
 script = ExtResource("6_00jpx")
 
 [connection signal="interacted" from="Interaction" to="Interaction/Interaction" method="_on_interaction_interacted"]
diff --git a/shaders/fluid.gdshader b/shaders/fluid.gdshader
index e8b086d..4bca778 100644
--- a/shaders/fluid.gdshader
+++ b/shaders/fluid.gdshader
@@ -2,6 +2,7 @@ shader_type spatial;
 
 render_mode cull_back, blend_mix;
 
+uniform vec4 albedo_color: source_color;
 uniform float fill: hint_range(0.0, 1.0, 0.01) = 0.;
 uniform float wave_intensity: hint_range(0.0, 1.0, 0.01) = 0.;
 
@@ -17,6 +18,8 @@ void vertex() {
 
 void fragment() {
 	// Called for every pixel the material is visible on.
+	ALBEDO = albedo_color.rgb;
+	ALPHA = albedo_color.a;
 }
 
 //void light() {
diff --git a/src/drag/draggable_object.gd b/src/drag/draggable_object.gd
index dc70afe..ebfc92f 100644
--- a/src/drag/draggable_object.gd
+++ b/src/drag/draggable_object.gd
@@ -26,6 +26,8 @@ var dragged: bool = false:
 @export var interactible: Interactible
 @export var button_generator: ButtonGenerator
 
+@export var display_text: String
+
 @export var mask: PackedStringArray
 var contacted_draggables: Array[DraggableObject]
 var filtered_draggables: Array[DraggableObject]
@@ -37,9 +39,18 @@ func _ready() -> void:
 
 func _mouse_enter() -> void:
 	mouse_in = true
+	var text: String
+	if has_node("Inventory") and len($Inventory.inventory) != 0:
+		text = $Inventory.get_text()
+	else:
+		text = display_text
+	if text == "":
+		return
+	Tooltip.set_text(text)
 
 func _mouse_exit() -> void:
 	mouse_in = false
+	Tooltip.clear()
 
 func set_mask(new_mask: PackedStringArray) -> void:
 	mask.clear()
diff --git a/src/interactible/spoon_interaction.gd b/src/interactible/spoon_interaction.gd
index 6b08e3a..9b251d1 100644
--- a/src/interactible/spoon_interaction.gd
+++ b/src/interactible/spoon_interaction.gd
@@ -29,3 +29,9 @@ func _on_interactible_interacted(with: DraggableObject) -> void:
 			log_message += "%s мг. %s, " % [str(sub.amount),sub.substance.get_formula()]
 		GuiSignalBus.push(log_message)
 	inventory_updated.emit(mini_inventory)
+
+func _process(_delta: float) -> void:
+	var result = ""
+	for key in mini_inventory:
+		result += key.substance.scientific_name + "+"
+	$"../..".display_text = result.left(len(result)-1)
diff --git a/src/interactible/substance_jar_interaction.gd b/src/interactible/substance_jar_interaction.gd
index 80761e1..24aea76 100644
--- a/src/interactible/substance_jar_interaction.gd
+++ b/src/interactible/substance_jar_interaction.gd
@@ -3,7 +3,7 @@ extends Node
 var add_amount: float
 
 func _on_interaction_interacted(with: DraggableObject) -> void:
-	if with.is_in_group("flask"):
+	if with.is_in_group("flask") and add_amount > 0:
 		var subs: RuntimeSubstanceData = RuntimeSubstanceData.new()
 		subs.amount = add_amount
 		subs.substance = $"../../SubstanceData".substance
diff --git a/src/inventory.gd b/src/inventory.gd
index ad3f6c4..7fb4870 100644
--- a/src/inventory.gd
+++ b/src/inventory.gd
@@ -179,3 +179,22 @@ func check_for_reactions() -> void:
 	update_solutions()
 	inventory_changed.emit(inventory.values())
 	GuiSignalBus.push("Произошла реакция")
+	if len(find_odor()) > 0:
+		GuiSignalBus.push("Появился запах")
+
+#func find_gases() -> Array[RuntimeSubstanceData]:
+#	for key in inventory:
+#		if inventory[key].substance in [preload("H")]
+
+func find_odor() -> Array[RuntimeSubstanceData]:
+	var result = []
+	for key in inventory:
+		if inventory[key].substance in [preload("res://assets/substances/CH3COOH.tres")]:
+			result.push_back(inventory[key])
+	return result
+
+func get_text() -> String:
+	var result = ""
+	for key in inventory:
+		result += key + "+"
+	return result.left(len(result)-1)
diff --git a/src/substance_display.gd b/src/substance_display.gd
index 29833f4..5ef296f 100644
--- a/src/substance_display.gd
+++ b/src/substance_display.gd
@@ -12,7 +12,48 @@ enum DisplayType{
 	material_override.set_shader_parameter("wave_intensity",1.)
 	tween.tween_property(material_override,"shader_parameter/wave_intensity",0.0,2.0)
 
-func update_material(substances: Array[RuntimeSubstanceData]) -> void:
+func update_fluid_material(substances: Array[RuntimeSubstanceData]) -> void:
+	var mat: ShaderMaterial = material_override
+	if len(substances) == 0:
+		visible = false
+		return
+	else:
+		visible = true
+		
+	var total_weight = 0
+	var total_color = 0
+
+	for sub in substances:
+		total_weight += sub.amount
+		total_color += sub.substance.color_influence
+	
+	var pH: float = 0
+	var color: Color = Color(0,0,0,0)
+
+	for sub: RuntimeSubstanceData in substances:
+		var weight: float = sub.amount/total_weight
+		pH += sub.substance.get_ph_runtime(substances) * weight
+	
+	for sub: RuntimeSubstanceData in substances:
+		var color_to_add: Color
+		if sub.substance.pHColor != null:
+			color_to_add =  sub.substance.pHColor.sample(pH/14.0)
+		else:
+			color_to_add = sub.substance.color
+			
+		if display_type == DisplayType.Fluid and sub.is_solution:
+			color_to_add.a = 0.5
+		
+		#if color == Color(0,0,0,0):
+		#	color = color_to_add
+		#else:
+		#	color = color.lerp(color_to_add,sub.substance.color_influence)
+		color += color_to_add * sub.substance.color_influence
+	
+	
+	mat.set_shader_parameter("albedo_color", color / total_color)
+
+func update_solid_material(substances: Array[RuntimeSubstanceData]) -> void:
 	var mat: StandardMaterial3D = material_override
 	if len(substances) == 0:
 		visible = false
@@ -57,10 +98,10 @@ func update_material_unfiltered(substances: Array[RuntimeSubstanceData]):
 	match display_type:
 		DisplayType.Fluid:
 			var fluids = substances.filter(filter_liquids)
-			update_material(fluids)
+			update_fluid_material(fluids)
 		DisplayType.Solid:
 			var solids = substances.filter(filter_solids)
-			update_material(solids)
+			update_solid_material(solids)
 
 func filter_liquids(sub: RuntimeSubstanceData): return sub.substance.melting_point < sub.temperature or sub.is_solution
 func filter_solids(sub: RuntimeSubstanceData): return sub.substance.melting_point > sub.temperature and not sub.is_solution
diff --git a/src/substance_holder.gd b/src/substance_holder.gd
index 131ebf9..cbf539b 100644
--- a/src/substance_holder.gd
+++ b/src/substance_holder.gd
@@ -15,3 +15,4 @@ func _ready() -> void:
 			if substance.is_solution:
 				jar_fill_material.albedo_color.a = 0.5
 			get_parent().add_to_group("fluid_source")
+		get_parent().display_text = substance.scientific_name
diff --git a/ui/tooltip.gd b/ui/tooltip.gd
new file mode 100644
index 0000000..149af6e
--- /dev/null
+++ b/ui/tooltip.gd
@@ -0,0 +1,12 @@
+extends Control
+
+func _process(delta: float) -> void:
+	global_position = get_global_mouse_position()
+
+func set_text(text: String):
+	$Label.text = text
+	visible = true
+
+func clear():
+	$Label.text = ""
+	visible = false
diff --git a/ui/tooltip.gd.uid b/ui/tooltip.gd.uid
new file mode 100644
index 0000000..d3dd636
--- /dev/null
+++ b/ui/tooltip.gd.uid
@@ -0,0 +1 @@
+uid://bu3exvpul8jhk
diff --git a/ui/tooltip.tscn b/ui/tooltip.tscn
new file mode 100644
index 0000000..eac1947
--- /dev/null
+++ b/ui/tooltip.tscn
@@ -0,0 +1,15 @@
+[gd_scene format=3 uid="uid://dtpy85f2ycbur"]
+
+[ext_resource type="Script" uid="uid://bu3exvpul8jhk" path="res://ui/tooltip.gd" id="1_np3dp"]
+
+[node name="Tooltip" type="PanelContainer" unique_id=246590363]
+visible = false
+offset_right = 1.0
+offset_bottom = 23.0
+size_flags_horizontal = 0
+size_flags_vertical = 0
+script = ExtResource("1_np3dp")
+
+[node name="Label" type="Label" parent="." unique_id=1174493236]
+layout_mode = 2
+size_flags_horizontal = 0