PowerShell Abominations 3

Here we have a hand-minified pair of oneliners that encode or decode any binary file into a windows bitmap, encoding the bits of the source file as high or low values of the bitmap's RGB pixels. I know this shouldn't exist but I'm sorry, it does now, it's too late. Using this, I successfully transferred a 400kb zip file using screenshots of a remote desktop only. It tolerates some color degredation but the resolution needs to be good and it doesn't have any built-in error correction so checking hashes after transfers is advised.