…the font is small, thin, and very hard to read
For me, 3.8 made the font *larger* and with more spaces between each letter. Less content per page, while not being any easier to read.
Allowing user to pick the color options (from a palette) would be much preferred to eight options I don’t like.
Also, allowing user to set default column width / number of columns is preferable to having the dashboard select for me (and change the columns without asking when I resize my browser).
Even more than all that, however, I used to show 10 recent comments on my dashboard Activity; now it’s just 5 and I can’t see a way to change that.