Improved visuals and audio!

I added a few sound effects and a new aesthetic look to everything! (I used my own art, haha, didn't have to do much really to update it.) The background and checkpoint are still the same, but hey, I can update them next update! ;) The jump and walking sound effects are from a website called soundbible.com! So they are royalty-free! :D Even the buttons are slightly different (they go with the dim white light theme at the bottom, lol).

I also updated the instructions for the level editor! So you can go take a look! What do you think about this update? :)