Small fix, 3 of the 18 arms weren't showing up, now they do!

Now with various arm shades!
There are 2 lenghts and 3 types:
Long and short
Tips, gloves and shades
For each, there is a dark, medium and light

That makes it 18 new arms!
They should all work with any color (unless the scug is a much darker shade, close to black, then it'll be too hard to see)
A variant that should make it better for darker scugs will come soon