KItemListWidget: stop overriding style‑provided background brushHEADmaster

The previous implementation forced a custom background colour
before delegating to the style's PE_PanelItemViewItem primitive.
This interferes with theme‑specific drawing and results in a hard‑coded, 
non‑themed highlight that breaks styling across themes.

Remove the explicit brush assignment, allowing the style to
paint the background itself. The focus rectangle handling remains
unchanged and is still drawn only for the active item.
And pass  the State_MouseOver to focus rect style option when hovered.

0 files changed, 0 insertions, 0 deletions