This action will delete all artwork items which are not squarish. Squarish is defined as the absolute difference between an image's width and height being less than a supplied percentage (default 1%) of the larger of the two.
Actions: Delete Artwork Not Squarish
2015-07-24 First release.
2015-07-26 Updated to make it easier to change the percentage.
2015-12-10 Code improvements.
2018-04-03 Updated for Yate v4.