Previous versions allowed just clicking on the icon to toggle redshift
on and off. Now I have to click, hold, scroll up several items and
select the Enabled item in the menu.

After trying to live with this for several weeks, I'm still finding it
annoying. (To the point that I wrote a little script to toggle that I
can run from my desktop's panel, instead of using gtk-redshift at all.)

The menu is a nice feature, but it seems to me it should only come up on
a button #3 click, not button #1.