How to replace the default JFace message icons

We all know the standard JFace icons very well. They appear in Dialogs, Wizards and Forms.

And in a form they look like this:

Now, there is a quick and easy way to replace them with your own icons if you like.

You just have to create a Fragment bundle and set org.eclipse.jface as its Bundle-Host. In your fragment bundle you include the icons you want to replace in the following folder structure:

Don't forget to add the icons folder and all of its subfolder and content into your build.properties file:

bin.includes = META-INF/,\
             .,\
             OSGI-INF/,\
             icons/

Interesting fact: You can replace the JFace icons with PNGs too. You can just rename them to have the .GIF extensions. The image file loader of SWT does not care about the extension but analyses the content of the file.