The version of Whiskers (https://scratch.mit.edu/discuss/topic/157672/) based off of NuScratch. Warning: This is now unmaintained. I will not be working on this anymore, but pull requests will not be ignored.
This source was created by the ScratchFrameMorph class>>fileOutChanges method. If you want to create a Whiskers image from this source, first download a new Squeak 5.0 image and load NuScratch on it. Then, file in the contentsAsStream method from 3 - ZipArchiveMember and the fileInChangesFromDirectory method from 3 - ScratchFrameMorph class. Then, in a new workspace, run ScratchFrameMorph fileInChangesFromDirectory: (FileDirectory default directoryNamed: 'Code')