Summary
This is a follow-up to Theme-aware SVG Picture on a Slide Renders Static Fallback Fill Instead of the Resolved Theme Color, which you fixed in 26.6.0. That fix resolved the two configurations in that report, but …...differ: Slide 1 uses a slide layout whose color map is an <a:overrideClrMapping>...#FFFFFF . Two layouts under that master: Inherit layout — <a:masterClrMapping/>...