Source Code Syntax Color Settings
Controls if the syntax of methods should be highlighted in the
browser, by coloring entities.
Colors and emphasis can be individually configured for various syntactic and semantic entities, such as message selectors, comments, global or local variables etc.
For a number of common styles, select the style in the combo box, and click on the "Reset to:" button.
Immediate Selector Check
If on, a syntax check is done "while you type in new characters"
in the editor, and message selectors are checked on the fly.
Any unimplemented message is highlighted (bold-red by default).
You may want to disable this on a slow machine.