I have started doing some modest web development and have found the Color Chooser to be very useful for picking colors for various style properties. This is a great feature, but I have a suggestion to improve it: Add an "Apply" button to the Color Chooser dialog. Currently it has only "Cancel" and "OK." The effect would be the same as "OK" except that the dialog would remain open, just like with the Edit->Properties dialog.
Setting colors can be a very iterative process and this would allow one to tweak a color and observe the result in context without having to re-open the dialog each time.
Many thanks,
Bob Snyder