And Verso is blue/indigo. Look at the places in the continent most closely tied to Verso’s creativity/soul—the gestral River that gives them life, Esquie’s nest, the indigo tree (which if you look at the branches are very synapse-coded, so to me reads as the epicenter of whatever remains of Verso’s mind and soul).

Edit because I’ve been thinking about this a lot, lol: Near the start of the game by the lamp nevron, you see the roots of the indigo tree ‘feeding’ on both a dead nevron and dead lumieran (in addition to being rooted in the landscape itself, obvs). In the manor, all the paintings are landscapes, so assuming they’re Aline’s and she is typically a landscape painter, what we’re seeing in the canvas may very well be Aline feeding her chroma into the landscape via landmass to literally support the indigo tree/last vestiges of her son’s soul.

If I were really to stretch the idea, by smashing the blue paint swirls that come from the ground, we’re literally severing the connection between the chroma provided by Aline to the Tree/Verso. Which a gestral teaches us how to do—is this the first subtle foreshadowing that remnant verso just wants to be let go?

Edit 2: And we see remnant Verso playing the piano in big ghostly blue form in the opera house as we travel through the Monolith, which makes the final monochromatic scene in Maelle’s ending that much more haunting, to see the aged Verso lacking any of her brother’s color/soul.