Mary heard her dog, Patti, whining outside the door, wanting to be let in. That gave her an idea on what to try first. There was an option to limit the changes. She could isolate the town from the rest of reality with something called a perception filter. No one outside of the town would notice anything was wrong, and vice-versa.
"Set parameters of change," she read. "Dominant species: human." She hit the pulldown and moved the selection to canine. A bunch of other presented themselves for her to choose from. She started using tools to swap traits between humans and dogs.
She saved the program, and finally, after a few moments of deliberation, she hit run and a progress bar appeared on the screen...with the heading...preparing changes.
Mary stripped off her t-shirt and jeans, then her bra and underwear and stood there naked. She walked over to the mirror and looked at herself one more time. "Soon, I won't care anymore," she declared to her hated reflection.
She turned back to the screen. "Ready to Execute...press any key to continue." She hit the enter key. "Executing..." and another progress bar. It seemed to be moving very slowly.
She looked at herself in the mirror, and suddenly grew restless. She wanted to go play, not stay in here. The progress bar on the screen forgotten for now, she opened the door to her room, revealing Patti, who was outside the door. "Come on, Patti...let's go play fetch!!" Mary said, excitedly.
The dog looked at her, confused by that. Patti didn't feel like playing fetch right now. She just wanted to relax.