Alternative to Thickbox Modal Window

Colorbox is the replacement for thickbox...

I vote for colorbox. I have already started using it on all my sites that I use to use thickbox. Not sure how hard it would be to add support.

I'm guessing after support is added I would have to check the box inside the colorbox admin area.
"Enable Colorbox load : This enables custom links that can open forms and paths in a Colorbox. Add the class "colorbox-load" to the link and build the url like this for forms "/colorbox/form/[form_id]?width=500&height=500" and like this for paths "[path]?width=500&height=500&iframe=true". If you do not want the box to persist set iframe to false. Other modules may activate this for easy Colorbox integration."

Also remove the node/*/edit under the "Deactivate Colorbox on specific pages:" inside advance options.

There is a new effort to using a single API for Modal Windows.
Wouldn't it better to use http://drupal.org/project/modalframe for this purposes :)

Here is some love for this great module.
Remember that after installing Modal Frame API module you'll need to select it on imagecrop settings page.

I'm gonna check the patch. I will also implement an own hook, so people can easely add their own popup system.

Integration for both colorbox and modalframe has been added. hook_imagecrop_popups() can be used for adding extra modal modules.