How do i install a premium tumblr theme?

Unfortunately The official tumblr webshop is still in beta.
This means that installing a premium theme Native Citizens is a little harder then we would like it to be.

To install a premium theme:

  1. Unzip the THEME-*.zip file (see file contents).
  2. Browse the THEME/PREVIEWS folder, select the layout that fits your needs.
  3. Look up the template source file (.html) in one of the preset folders.
  4. Open the template source file in a browser (safari, firefox, ie, chrome)
  5. Right click somewhere in the browser and click the “view source” option
  6. Select all the source code
  7. Copy the source code
    IMPORTANT don’t use the code that appears in your browser,
    use only the code that shows up when you’ve clicked the “view source” option
    It should start with:
  8. Surf to http://www.tumblr.com and login with your details
  9. Go to customize appearance
  10. Click the edit HTML button
  11. Remove existing code and paste the source code
  12. Go back to appearance options
    IMPORTANT the tumblr preview and appearance options will sometimes
    cache settings. So be patient, and be sure to always check the
    end result of your customizations.
  13. Click Save
  14. Click close
  15. Your Done

This instruction is also included in your theme’s README.txt