Gonna need help with more than the color, yo! But this a lot better than what I thought of at first.

[What was, you know, a literal sign.

He watches as she adds a little bit more flourish towards the end of the words, chuckling when he sees the sakura begin to take shape. It fits Susato all too well.]

Tha's totally you, yo. If you wanna add more, go for it, aight? This is our sign now.