diff --git a/.idea/.idea.VirtualChemDemo/.idea/vcs.xml b/.idea/.idea.VirtualChemDemo/.idea/vcs.xml
index 94a25f7..b6232e4 100644
--- a/.idea/.idea.VirtualChemDemo/.idea/vcs.xml
+++ b/.idea/.idea.VirtualChemDemo/.idea/vcs.xml
@@ -1,6 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../Skeleton" vcs="Git" />
+    <mapping directory="$PROJECT_DIR$/../SkeletonTest" vcs="Git" />
     <mapping directory="$PROJECT_DIR$" vcs="Git" />
+    <mapping directory="$PROJECT_DIR$/../VirtualChemistry" vcs="Git" />
+    <mapping directory="$PROJECT_DIR$/../VirtualChemistryTest" vcs="Git" />
   </component>
 </project>
\ No newline at end of file
diff --git a/Scenes/Flask.cs b/Scenes/Flask.cs
index c4dd0e2..9c13998 100755
--- a/Scenes/Flask.cs
+++ b/Scenes/Flask.cs
@@ -1,5 +1,5 @@
 using Godot;
-using Mathool.DataStructure;
+using Skeleton.DataStructure;
 using VirtualChemistry.Chemistry.Containers;
 using VirtualChemistry.Chemistry.Mixtures.Implements;
 
diff --git a/Scenes/FlaskContent.cs b/Scenes/FlaskContent.cs
index 33f4f78..5c3882d 100755
--- a/Scenes/FlaskContent.cs
+++ b/Scenes/FlaskContent.cs
@@ -1,5 +1,5 @@
 using Godot;
-using Mathool.DataStructure.Link;
+using Skeleton.DataStructure.Link;
 using VirtualChemistry.Chemistry.Mixtures.Implements;
 
 public partial class FlaskContent : ColorRect
diff --git a/VirtualChemDemo.csproj b/VirtualChemDemo.csproj
index f731a8f..eeaa336 100755
--- a/VirtualChemDemo.csproj
+++ b/VirtualChemDemo.csproj
@@ -6,7 +6,7 @@
     <EnableDynamicLoading>true</EnableDynamicLoading>
   </PropertyGroup>
   <ItemGroup>
-    <ProjectReference Include="..\..\VirtualChemistry\VirtualChemistry\VirtualChemistry.csproj" />
-    <ProjectReference Include="..\Mathool\Mathool.csproj" />
+    <ProjectReference Include="..\Skeleton\Skeleton.csproj" />
+    <ProjectReference Include="..\VirtualChemistry\VirtualChemistry.csproj" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/VirtualChemDemo.sln b/VirtualChemDemo.sln
index fae195e..e24ba67 100755
--- a/VirtualChemDemo.sln
+++ b/VirtualChemDemo.sln
@@ -2,13 +2,13 @@
 # Visual Studio 2012
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VirtualChemDemo", "VirtualChemDemo.csproj", "{477897FC-42F3-4DA7-A051-6015F15BAEAF}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Mathool", "..\Mathool\Mathool.csproj", "{7D360478-C41C-4E3A-82A8-A71EFBC779F8}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VirtualChemistry", "..\VirtualChemistry\VirtualChemistry.csproj", "{FB57BA80-96CF-4CAF-B7DE-807650B81BE3}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MethoolTest", "..\MethoolTest\MethoolTest.csproj", "{2A928C8C-37C0-4699-8D6B-1D70CE9D251C}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Skeleton", "..\Skeleton\Skeleton.csproj", "{0D01BE23-8243-47C2-B2D0-08F617137C03}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VirtualChemistry", "..\..\VirtualChemistry\VirtualChemistry\VirtualChemistry.csproj", "{48CA73EA-2BEA-4D2B-9063-54EA52BBBC1A}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SkeletonTest", "..\SkeletonTest\SkeletonTest.csproj", "{ABE3FB26-3DFA-4336-9357-B7278D253D69}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VirtualChemistryTest", "..\VirtualChemistryTest\VirtualChemistryTest.csproj", "{01065452-98E1-4EB6-A8CC-CF387CA91623}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VirtualChemistryTest", "..\VirtualChemistryTest\VirtualChemistryTest.csproj", "{6164DB75-BC19-41DC-BC69-8A813EEE0179}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -47,5 +47,29 @@ Global
 		{01065452-98E1-4EB6-A8CC-CF387CA91623}.ExportDebug|Any CPU.Build.0 = Debug|Any CPU
 		{01065452-98E1-4EB6-A8CC-CF387CA91623}.ExportRelease|Any CPU.ActiveCfg = Debug|Any CPU
 		{01065452-98E1-4EB6-A8CC-CF387CA91623}.ExportRelease|Any CPU.Build.0 = Debug|Any CPU
+		{FB57BA80-96CF-4CAF-B7DE-807650B81BE3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FB57BA80-96CF-4CAF-B7DE-807650B81BE3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{FB57BA80-96CF-4CAF-B7DE-807650B81BE3}.ExportDebug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FB57BA80-96CF-4CAF-B7DE-807650B81BE3}.ExportDebug|Any CPU.Build.0 = Debug|Any CPU
+		{FB57BA80-96CF-4CAF-B7DE-807650B81BE3}.ExportRelease|Any CPU.ActiveCfg = Debug|Any CPU
+		{FB57BA80-96CF-4CAF-B7DE-807650B81BE3}.ExportRelease|Any CPU.Build.0 = Debug|Any CPU
+		{0D01BE23-8243-47C2-B2D0-08F617137C03}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0D01BE23-8243-47C2-B2D0-08F617137C03}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0D01BE23-8243-47C2-B2D0-08F617137C03}.ExportDebug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0D01BE23-8243-47C2-B2D0-08F617137C03}.ExportDebug|Any CPU.Build.0 = Debug|Any CPU
+		{0D01BE23-8243-47C2-B2D0-08F617137C03}.ExportRelease|Any CPU.ActiveCfg = Debug|Any CPU
+		{0D01BE23-8243-47C2-B2D0-08F617137C03}.ExportRelease|Any CPU.Build.0 = Debug|Any CPU
+		{ABE3FB26-3DFA-4336-9357-B7278D253D69}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{ABE3FB26-3DFA-4336-9357-B7278D253D69}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{ABE3FB26-3DFA-4336-9357-B7278D253D69}.ExportDebug|Any CPU.ActiveCfg = Debug|Any CPU
+		{ABE3FB26-3DFA-4336-9357-B7278D253D69}.ExportDebug|Any CPU.Build.0 = Debug|Any CPU
+		{ABE3FB26-3DFA-4336-9357-B7278D253D69}.ExportRelease|Any CPU.ActiveCfg = Debug|Any CPU
+		{ABE3FB26-3DFA-4336-9357-B7278D253D69}.ExportRelease|Any CPU.Build.0 = Debug|Any CPU
+		{6164DB75-BC19-41DC-BC69-8A813EEE0179}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6164DB75-BC19-41DC-BC69-8A813EEE0179}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6164DB75-BC19-41DC-BC69-8A813EEE0179}.ExportDebug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6164DB75-BC19-41DC-BC69-8A813EEE0179}.ExportDebug|Any CPU.Build.0 = Debug|Any CPU
+		{6164DB75-BC19-41DC-BC69-8A813EEE0179}.ExportRelease|Any CPU.ActiveCfg = Debug|Any CPU
+		{6164DB75-BC19-41DC-BC69-8A813EEE0179}.ExportRelease|Any CPU.Build.0 = Debug|Any CPU
 	EndGlobalSection
 EndGlobal