PG duplicating design panel CSS links in files

After activating the Design Panel, PG repeatedly adds a duplicate theme.css link to a file every time you re-open it.

Steps to Reproduce:

  1. Open PG
  2. Create new HTML page
  3. Save the page to an empty folder
  4. Click [Yes] to open the folder as a project
  5. Close the file
  6. Click the Activate button on the Design panel
  7. Re-open the file and view the HTML
  8. PG has automatically added the new style.css and theme.css links
  9. Close the file and confirm unsaved changes
  10. Re-open the file and view the HTML
  11. PG has now added a DUPLICATE theme.css link
  12. Close the file and confirm unsaved changes
  13. Re-open the file and view the HTML
  14. PG has added ANOTHER DUPLICATE theme.css link
  15. This can be repeated forever

Video: