Here's what I came up with so far.
The concept is pretty simple. It's supposed to resemble a minecraft block, with the ftb name underneath. :3
I went for clean, mostly.
Also had two versions. One has the original colors on the block with a greyscale on the name (this can be changed to only one tone, or maybe white, black doesn't look so nice)
The other one is colored as a dirt block and the colors are on the text.
Personally I like the first the most. :3