You could try the "high contrast display mode" (on the left toolbar), that greys out inactive layers. I usually unfill zones and hide layers, though.
and the combination of regions that have copper on them is the awful puke green.
Adjust your monitor, it's yellow here. Or adjust your diet.
Via stitching. If I create some stitches (go to a pour region, start a track, press V, press End, which is what has been the most recommended method I've seen) everything appears to be fine. I then run a DRC and then the editor disconnects all my vias from the pour and pulls the copper back to meet the clearance requirements. Any suggestions?
In older versions, yeah - you need to leave it connected to something, or it becomes disconnected. Newer (read: unstable) versions have "fixed" this - it still
can become disconnected, but it can be reconnected instead of redrawn. (Yeah, it's f@$#ing annoying. They need to
fix that, not "fix" it...)
Also, is there anyway you can change the thermal angle for circular pads?
I really wish there were. You can set the width and spacing of the spokes, but not the angle (edit pad -> Local Clearance and Settings).