Using RTE within settings of a custom grid editor

I'm trying to use an RTE for a setting within my custom grid editor however no toolbar shows.

What am I doing wrong.

Here's how I've configured the setting within the package.manifest, tried 2 different ways

"testRTE": {
        "label": "Test RTE",
        "key": "testRTE",
        "description": "Test RTE",
        "view": "/umbraco/views/propertyeditors/rte/rte.html",
        "config": {
          "editor": {
            "toolbar": [ "code", "undo", "redo", "cut", "styleselect", "bold", "italic", "alignleft", "aligncenter", "alignright", "bullist", "numlist", "link", "umbmediapicker", "umbmacro", "table", "umbembeddialog" ],
            "stylesheets": [],
            "dimensions": {
              "height": 400,
              "width": 250
            }
          }
        }
      },
      "testRTE2": {
        "label": "Test RTE2",
        "key": "testRTE2",
        "description": "Test RTE2",
        "view": "/umbraco/views/propertyeditors/grid/editors/rte.html",
        "config": {
          "editor": {
            "toolbar": [ "code", "undo", "redo", "cut", "styleselect", "bold", "italic", "alignleft", "aligncenter", "alignright", "bullist", "numlist", "link", "umbmediapicker", "umbmacro", "table", "umbembeddialog" ],
            "stylesheets": [],
            "dimensions": {
              "height": 400,
              "width": 250
            }
          }
        }
      }

However in the settings pane i don't see the toolbar for the RTE