There are two methods of changing the Fracture logo: via the logo picker and manual change.

The Logo Picker

  1. Enable Logo and set to Custom at Admin Dashboard → Fracture Theme → Style.
  2. Set Logo Picker to either RokGallery or Media Library.
  3. Select your logo, Insert and Save

Logo Panel

Select Logo

Manual Change

  1. Set Type to Fracture.
  2. Upload logo.png to the
    /wp-content/themes/rt_fracture_wp/images/logo/*style* directory
  3. Clear your browser cache and refresh.

If you cannot see your new logo, ensure you have uploaded it to the right directory and the directory permissions are writeable. Enquire with your hosting provider.