Image licensing issues

[justintadlock]

Unsplash and Pixabay:

* images/jeremy-bishop-14593.jpg
Source: https://unsplash.com/@tidesinourveins?photo=l61smgU3Y7w - Copyright (c) Jeremy Bishop

* images/photo-1455894127589-22f75500213a.jpeg
Source: https://pixabay.com/en/laptop-desk-scene-computer-1246672/

* images/project1.jpg
Source: https://unsplash.com/@firmbee?photo=jrh5lAq-mIs - Copyright (c) William Iven

I noticed you're using a few images from Unsplash and Pixabay. As of right now, images from those sites are no longer allowed on WordPress.org since both sites changed their licensing to something other than CC0 and incompatible with WordPress.org's policy of 100% GPL compliance.

However, if you do have images from there and the image is definitely under the CC0 license, your .ORG reviewer must have a way of being able verify that.

The easiest course of action is to simply use different images.

Coverr:

* images/Mock-up.jpg - 
Source: http://coverr.co/ ("Mock-up" coverr)

The Coverr.com license is incompatible with the GPL: http://coverr.co/license_and_faq They don't specifically mention images there, but one can assume that images fall under the same license.

Here are the bits that make it incompatible:

This license does not include the right to compile Videos from Coverr.co to replicate a similar or competing service.

And:

Am I allowed to sell or redistribute the videos I download from Coverr?
Good question, no you’re not.
It means that you can’t sell the videos and it also means that if you have a service to which providing videos can help - you’re not allowed to offer Coverr videos, either. This applies to Stock Video sites, Website builders, Themes providers, Mobile apps builders and Video editing services.

Horea Radu images:

The following images are the creation of Horea Radu and are distributed under the Creative Commons Zero License, http://creativecommons.org/publicdomain/zero/1.0/

You need to link to a page where the WordPress.org theme reviewer can verify the license of these images.

[TallGuysFreeADMIN]

"both sites changed their licensing to something other than CC0"

If the images were previously in the public domain OR CC0, and the official owner of the work designated it as such (not someone taking the image and saying it's CC0 mistakenly), the work can NOT be licensed back into copyright protection or another license.

You CANNOT revoke the license on public domain or any creative commons license work.

Unless it's a wordpress rule, no source or author needs to be given on public domain or CC0 work.

[justintadlock]

I just got pinged on this old ticket. I do want to note that .ORG does allow Pixabay images but not Unsplash at this point.

If the images were previously in the public domain OR CC0, and the official owner of the work designated it as such (not someone taking the image and saying it's CC0 mistakenly), the work can NOT be licensed back into copyright protection or another license.

You CANNOT revoke the license on public domain or any creative commons license work.

Correct. However, if your reviewer at .ORG has no way to verify that the image is in fact in the public domain, they won't allow it. It's not a matter of legality. It's a matter of verification for .ORG.

Unless it's a wordpress rule, no source or author needs to be given on public domain or CC0 work.

It is a WordPress.org rule. Reviewers must be able to check and verify the license and/or copyright (or non-copyright as the case may be) of third-party resources.