If you make changes to the Toolbox configuration, the Visual Designer creates a file called toolbox.xml, which specifies the new custom settings, in the project root folder. You can copy this file to other projects, or share the file with other users, to duplicate the customized Toolbox settings.
If you share a Toolbox, make sure all of the controls are installed on all machines. Controls that are specified in the toolbox.xml file but are not available on the system appear in the Toolbox with a red
icon.
icon.