| name | Name of the desired icon. |
| text | Tooltip for hovering over the icon. |
Fetch the GUIContent from the Unity builtin resources with the given name.
EditorGUIUtility.IconContent is used to create a GUIContent for a GUI
element. Only icons are loaded. Typically the icon from
Assets/Editor Default Resources/Icons is fetched using the first argument.
Only the name of the icon, without the png extension is needed.
The second argument provides the text for a hovering tooltip. This string
needs to start with a vertical bar "|" character to flag it as a tooltip.
Note: The hovering over the tooltip cannot currently be positioned.