The image of Luke Sywalker holding a lightsaber plus the Rebel symbol should be enough to convey to the message. Perhaps the graffiti could be placed on top of First Order propaganda? Plus whatever axlanian can do audio wise.

I think the idea is that the First Order is being spread thin by the growing uprising (which would make Palpatine’s fleet so alluring to Kylo Ren). I believe that’s what the new crawl aims to convey, plus the idea that Leia has been trying to unite these segregated acts of rebelion, which does a lot to make the giant civil fleet at the end more believable. The puppet show on Passana and the graffiti work to make Luke the ‘symbol’ of this uprising, which culminates in the “For Skywalker!” chanting on Exegol. This ties things directly to the ending of TLJ, and it adds a new layer to the title of the film.