The character in my avatar isn't Luna...
I'm not that crazy over Luna. I want some Celestia love.

How about filly Celestia? :)

http://fc08.deviantart.net/fs70/f/20...ar-d5mbdub.jpg

That's clearly Molestia, man.

D'aww! That's so adorable~!

Molestia has a darker tint to her mane.

Is that what your signature depicts? Celestia vs. Molestia?

Hmm. I thought her mane was just straight pink.

No. In the most recent comic story line (Which I seriously need to read >>), a doorway to an alternate universe is opened. This is evil Tia vs. good Tia (And Luna, who is in the background).
Here's the full image:
http://i.imgur.com/KHOg30v.jpg

Different shades.
http://i.imgur.com/EHMZew5.png
Here is the traditional hue for Molestia's mane.
http://fc01.deviantart.net/fs71/i/20...ja-d4zy1j7.png
Meanwhile, here is what's commonly used as filly Tia's mane, a much brighter hue of pink than Molestia's.

http://img1.wikia.nocookie.net/__cb2...oon_S01E01.png
Also, Celestia's pink mane/tail is taken from the first episode, it's not strictly a fanon thing.

Hmm, guess I've just been exposed to the normal pink color more.
And I forgot about the scene from the first episode, heh.

So MLP:FiM has it's own Shattered Glass continuity now? Awesome!

Yep yep. Because that scene is detailing an event over a millennium old, many took it as a sign that young Celestia had a solid pink mane.
When adult Tia has the solid colored mane, then it's usually Molly, but filly Tia with a solid pink mane is usually Celestia.

And I tend to forget about that scene, too :lol