Constant BG_IMAGE 

pub const BG_IMAGE: u32 = _; // 4_194_304u32

ImageNode from background_image (plus the opacity fold into its tint). Built at the reconcile call sites — the build needs AssetServer, which apply_style_masked doesn’t hold — via crate::background_image::apply_background_image; there is no arm for it inside apply_style_masked (the end-of-apply layer content-dirty tap still fires from this bit).