Have you ever wanted to make the sky in the end look like space? Were you afraid to download mods that could damage your computer? Well here's a solution! Find a folder on your computer called AppData, click on it, then go to Roaming, then go to the .minecraft folder. Now go to the bin folder. Find the folder called Minecraft.jar. Good, now open with an archiving program (like WinRar). Now go into "misc". You should see a .png file called "tunnel". Delete it. Now find the .png file called "particlefield". Then copy and paste it to your desktop and rename it tunnel. Now put it in the misc folder. Run Minecraft and enjoy!