@ngraham I could. I went scouting for examples of "the competition" trying to go borderless. Results vary, in form and execution. Some have rounder bottom corners and some don't, some have an outline and others have not. I went through the list of top window managers (taken from https://www.slant.co/topics/390/~best-window-managers-for-linux and https://wiki.archlinux.org/index.php/Window_manager) to find examples of borderless themes. Unsurprisingly I left out tiling window managers.
Dec 6 2018
Oct 2 2018
Oct 1 2018
I am surprised to see how much (almost all) of the discussion here goes around personal opinions and no effort or intention is seen in bringing in objective facts, research papers, articles, examples, trends etc. I found it irresponsible to decide upon a product used by millions of people this way.