This tool is used to compare two image files to generate '?replace' directives for use in Starbound. This allows you to work with your preferred image editing software.
Cross platform (Windows 10, Ubuntu, Mac OS):
Requires supposedly nothing!
(Haven't been able to test this on Ubuntu/Mac Os! Let me know how it works)
Requires .NET Framework 4.5.
Please note that the usage of both tools differs a bit. Read the information found on the pages!