Both movements value the painterly qualities of artwork, such as composition and colour, above narrative and that can certainly be seen in De Morgan's late works such as Twilight.
Perhaps the shades most ambitious deity was chasmir Malyavich, a Russian artist who enlisted black to invent a whole new painterly language that elevated feelings over representation.
We see this in the painterly hyper-real countryside of When Marnie Was There and Only Yesterday, where the character's emotions seem to be imbuing that very surroundings with a palpable irresistible charge.