Whats a CRC?
CRC stands for cyclic redundancy check. It’s a checksum formed by taking every byte in a file and running it through an algorithm that spits out a 32-bit number. While this number is not a truly unique identifier of the file, it is for all intents and purposes, as other files corresponding to that checksum will be just gibberish. Thus we can use the CRC to identify the file, which is more reliable than using a filename, and if the file is changed, the CRC will also change, so there’s no need to worry about having old (and incorrect) graphics files.
