Hi, So I contacted both parties with pull requests a week ago and have received no reply.
For FlatUI that's not so surprising as there was no reply to another licensing question asked by Alex way back in March and there very little activity on the project. The pull request contains a LICENSE file, headers and I also nicely asked them to confirm copyright belongs to them and not the contributors. Given there's no reply my plan is to go ahead as per per the discussion on legal discuss I'll add the header / license without the copyright line. For openfl I’ve also receive any reply and again as per the discussion on legal discuss I’ll go ahead and add the header. Are there any objections to the above? Or anything else people want to add? Alex how is progress with the CreateJS licensing/header issue? Have you contacted CreateJS yet? Thanks, Justin