Adjust your images with this tool. Bitmap Masking is an utility to set certain color of an image to be transparent. Although GTGE support transparency creation in runtime, it is best to do it outside to gain full performance during runtime. For example: Masking below image with green color.

Unzipped Files
* BitmapMasking.jar : Bitmap masking executable jar
* README.txt
* [src] : source Code

How-to-use
1. Unzip the downloaded BitmapMasking.zip
2. Run (double-click) BitmapMasking.jar
3. Browse to the directory where the images reside
4. Select any image files to be masked
5. Specify output directory where the masked images will be generated
6. Click [Mask Selected Images!]
7. Done!

Requirements:
* Java

The license of this software is Free, you can free download and free use this image utility software.