diff --git a/LemonUI.SHV/IDrawable.hpp b/LemonUI.SHV/IDrawable.hpp
new file mode 100644
index 00000000..fe824831
--- /dev/null
+++ b/LemonUI.SHV/IDrawable.hpp
@@ -0,0 +1,16 @@
+#pragma once
+
+namespace LemonUI
+{
+	/// <summary>
+	/// Represents an item that can be drawn.
+	/// </summary>
+	class IDrawable
+	{
+	public:
+		/// <summary>
+		/// Draws the item on the screen.
+		/// </summary>
+		virtual void Draw() = 0;
+	};
+}
diff --git a/LemonUI.SHV/IRecalculable.hpp b/LemonUI.SHV/IRecalculable.hpp
new file mode 100644
index 00000000..e14d1d88
--- /dev/null
+++ b/LemonUI.SHV/IRecalculable.hpp
@@ -0,0 +1,16 @@
+#pragma once
+
+namespace LemonUI
+{
+	/// <summary>
+	/// Interface for classes that have values that need to be recalculated on resolution changes.
+	/// </summary>
+	class IRecalculable
+	{
+	public:
+		/// <summary>
+		/// Recalculates the values.
+		/// </summary>
+		virtual void Recalculate() = 0;
+	};
+}
diff --git a/LemonUI.SHV/LemonUI.SHV.vcxproj b/LemonUI.SHV/LemonUI.SHV.vcxproj
index 0e3668dc..3c3b4ba3 100644
--- a/LemonUI.SHV/LemonUI.SHV.vcxproj
+++ b/LemonUI.SHV/LemonUI.SHV.vcxproj
@@ -15,6 +15,8 @@
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="Alignment.hpp" />
+    <ClInclude Include="IDrawable.hpp" />
+    <ClInclude Include="IRecalculable.hpp" />
     <ClInclude Include="Sound.hpp" />
   </ItemGroup>
   <PropertyGroup Label="Globals">
diff --git a/LemonUI.SHV/LemonUI.SHV.vcxproj.filters b/LemonUI.SHV/LemonUI.SHV.vcxproj.filters
index 77128a91..02a89782 100644
--- a/LemonUI.SHV/LemonUI.SHV.vcxproj.filters
+++ b/LemonUI.SHV/LemonUI.SHV.vcxproj.filters
@@ -26,5 +26,11 @@
     <ClInclude Include="Alignment.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="IRecalculable.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="IDrawable.hpp">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>
\ No newline at end of file