I feel like a moron, I followed this tutorial, and even found one on youtube. I make a 300x300 image for a 1x1 cell, I used all the colors provided for the map, but when I go to drag my image (for lets say dark grass) it gives me a round sign with a slash in the middle like a do not enter sign and will not let me drag my image to the 1x1 cell in mapedit. I'm sorry if my problem sounds stupid, but I only found 1 video series on YT showing how to make a map and then people directed me to this tutorial and for the life of me I can't figure out what I'm doing wrong.
SideNote I'm using GImp I've also took away the alpha channel and saved it as a 24 Bit bmp
Update: I wasn't putting the _veg on my image. Not sure how to delete this post, but I figured it out.