The old 'blurry halo selections' shader/widget had a couple of issues, not least of which that it did not work on ati cards. I've rewritten it to be a lot nicer and barring disasters it should be in stable sometime soon.
-It should now work on ati cards.
-The halos look a lot more like 'blurry halos' and less like pencil outlines.
-Halos now have a much more consistent thickness vs camera zoom level.
-Options have been simplified.
Comparison screenshots:
Old:
https://s28.postimg.org/u1rpkkf4b/screen00025.png?dl=0New:
https://s29.postimg.org/3zq59rklh/screen00206.png?dl=0