Brush diameter cursor in texture paint mode?

I’m not sure if this is new to 2.7 or not, but I can’t seem to figure out how to make my cursor display as the width of the paint brush when I’m in texture paint mode. I can muddle through all right- I mean, it technically works- but since the cursor is always a pointer arrow, figuring out exactly what’s going to be painted and where is kind of a crapshoot until I press the mouse button.

I know from tutorials that isn’t how it ought to be, but I have no idea what preference or setting might be flipped. (NB: I’m brand new to Blender with this release, so following tutorials and trying to discern the weird bits that are me-fucking-up versus what’s simply different in 2.7 is rough…)

I’ve tried reloading the factory settings: no luck. Can anyone tell me where I’m going wrong?

example (hopefully) attached ugh.blend (642 KB)

Enable ‘Show Brush’


Thank you!! Bizarre that it’s not the default.