What did you expect it to be? Yellow? Last time I ever used a pattern lock it was green like that. So I'm not sure what you expect it to be.
Most of the themes stay consistent. The default is nothing but yellow and black so I was expecting it to be one of those two (yellow would make most sense.
Not trying to step on anybody's toes. This is Bug report forum. It doesn't say specify major or minor ones only. I saw it so therefore I posted it. Just doing what I'm suppose to be doing to help make Liberty even better.
You're not stepping on anyone's toes. It's a good find and something to ask the Liberty team if they made changes to it or left it as it is. This is a first that I've seen a question about the lockscreen pattern not being the same as one might think.
But, if you search around here or over at the XDA forums, there are a lot of customized lockscreen patterns you can change to. Not sure what any of the links are, but I've seen them pop up from time to time.
I never bother with the pattern images bc I never use the pattern lock. Thus, they have never been altered by me for Liberty's default. I can look into it for GB Liberty.