Currently, the color of placeholder thumbnail icons changes to blue (Accent50) when a MenuItem is active / being selected. (You can experience this behavior using any of the TypeaheadSearch component demos).
This shouldn't happen because, unlike ItemMenu icons, placeholder thumbnails are not part of the interactive option being selected: they are only a decorative way of indicating that the related image is missing.
Acceptance criteria
- Placeholder thumbnail icons don't change color when MenuItems are selected
