Help finding which file/tag controls randomized blobs of path-adjacent farmland in acacia villages

I am attempting to replace the crops that these village path farms are made of, but I am having difficulty locating where anything regarding these farms are defined. I know that they are NOT predefined structures like the farms that have composters and frames, and there's no mention of them in the savanna path structure files. I've looked through the configured feature and placed feature folders as well and cannot find anything there. Any assistance finding what file(s) control these farmland blobs would help me out a lot.