Just something I thought about recently.
In the Super manga, it's stated that Goku Black's Super Saiyan Rosé form has a different color than Super Saiyan Blue because he's an actual godly Saiyan, whereas Goku and Vegeta are mortals who possess godly Ki.
With Top having a Destroyer Form, that got me to thinking. If Goku did choose to succeed Beerus as a God of Destruction, would his Super Saiyan Blue form become Super Saiyan Rosé?