blue eyes

People were very kind in helping me indentify that my pinto mare with one blue eye was a tovero, and I have read that the blue eyes normally occur in certain pinto coat patterns, not usually in tobianos. Next question is -- I have a filly who is a defninte tobiano, is out of a solid buckskin...

How do you tell a pattern on a paint miniature how do you tell if he/she is tobiano, frame overo, splash, sabino and ext? can tobianos have blue eyes? and this question has caught my mind how to get a grullo with both parents not being a grullo like will a palomino to a black have a chance...