blake_zero has updated his GUI Frontend to HDL_Patch with a couple new features in his 1.3 update.
Quote Originally Posted by blake_zero
1. Implement the injection of the splash, menu and buttons images into my code, so now you can choose the alpha value of the buttons bitmap (thanks to Jules for the source of BMP2IIF 1.0a).
2. Add an option to export the splash, menu and buttons images to bmps files.
You can get it in his thread here in the HDD Discussion Forums.