Update ThemeEditor.Controls.ColorPicker.csproj

src/ThemeEditor.Controls.ColorPicker/ThemeEditor.Controls.ColorPicker.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0;net461</TargetFramework>
+    <TargetFrameworks>netstandard2.0;net461</TargetFrameworks>
     <OutputType>Library</OutputType>
     <EnableDefaultCompileItems>False</EnableDefaultCompileItems>
     <LangVersion>latest</LangVersion>