Changes Jstris game background when game speed is below user-defined thresholds
Requires Tampermonkey/Greasemonkey - depending on which browser you use
To install: ensure that you already have Tampermonkey/Greasemonkey installed, then click https://github.com/xenonsb/jstris-sprint-coach/raw/master/jstris-sprint-coach.user.js
To configure: under Jstris settings, navigate to the additional settings (+) through the nav-bar, scroll to the bottom and check Change background colour. In addition, set the PPS thresholds for the background to change to red or orange accordingly. Keep in mind that the threshold for orange should be higher than red.