<https://forums.getpaint.net/topic/826-please-add-constrained-selection-option/#comment-2873>
<http://schema.org/text>
"Oh...I see the problem. \nWhen you hit Shift, it constrains it to the original ratio...you cannot simply resize the selection, and then expect this new ratio to hold.  So, when making the initial selection, you must get the correct ratio at this time.  Then, the Shift key gets the job done. \nRick Brewster, it might make more sense to make the ratio used by the Shift key update when you use the handles to resize a selection, and not to remain at the ratio of the original selection. "
<https://forums.getpaint.net/topic/826-please-add-constrained-selection-option/>