[Feature Request] toggle for return of focus?

if this isn't doable, that's totally cool. it's a flow optimization thing for me. when the browser is refreshed, it becomes the foreground app. anyway is is possible to toggle a return of focus to ST? the scenario i have in mind is CSS tuning: lots of client-leaning-over-shoulder-poking and it would be nice to be able to strictly iterate without haveing to manually come back to ST everytime we update. as a toggle, this could be turned off when i've updated and want to futz with the new page.

as i said, this is flow optimization, and i'm not even sure if it's doable, but if so, it would be magnificent. :) this plugin is a staple for my workflow now (RIP LiveReload). thanks for all your excelllent work. :)