[whpalmer4]

A couple of options which I'll point out in case you overlooked them:

1) check the Use Small Size box
2) switch to show Icon only (you'll want distinctive icons for everything)

If you've already tried that and it doesn't meet your needs, the following steps should let you change the icon titles:

0) quit OmniFocus
1) duplicate your OmniFocus.app file
2) select the duplicate
3) ctrl-click and choose Show Package Contents
4) go into the Contents folder
5) go into the Resources folder
6) go into the English.lproj folder (adjust as needed for other languages)
7) open DocumentToolbar.strings with TextEdit
8) search for a line that looks like "MarkProjectsReviewed" = "Mark Reviewed";
9) change the text to the right side of the "=" to your desired string
10) save the file
11) try launching the application and make sure everything seems to be okay
12) move the edited OmniFocus.app copy to be the production version