Examine source code of Testing editor with tree thing

Inspect and view changes in Testing editor with tree thing source codes across current and past versions

Please login to examine the extension's source code.

manifest.json

{
  "name": "Testing",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Theme banner.png"
    },
    "colors": {
      "frame": "rgba(122, 122, 122, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(117, 0, 0, 1)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)"
    }
  }
}