Nice mod, but it causes long lines to be wrapped, even when it's disabled.
To reproduce...
Add an SQL query that is one very long line. Note that in standard SMF the long line scrolls off the screen to the right, and a horizontal scroll bar is enabled.
After installing this mod the horizontal scroll bar is gone and the lines wrap. If you disable this mod by unchecking the "Enable syntax highlighting" box the syntax highlighting goes away, but the long lines are still wrapped with no horizontal scroll bar.
Edit: This is the version from April 11, 2012, 03:35:34 AM