Have you ever tried making maps for games? Well, it got a hell of a lot easier with the Context Tilemapper!
Instead of placing the grass edge, grass flat tile, then the opposite grass edge tile, you just place the letter 'g' where needed. This engine will check its surroundings to determine which tile it should be, or as they say, "putting it in context". For example, this:
g........
......g..
.ggg..g..
.ggg..g..
would be this:

To try it out yourselves, go into the Content folder, then the Levels folder, and edit the text file called 'Level 1.txt". The characters must make up a rectangle, and be warned that certain locations, such as the Right, Top, and Left corners, will turn your tile into a brown square, as shown above. Keep in mind that this is just a demo, and the full version will be released soon. So have at it! Download it
here.