Icon highlighting in Thermostat example is barely visible

In the Thermostat example, when resizing the window so that the sidebar consists of single icons without page names, the highlighting that tells you what page you are on is too weak. This is only the case for the sidebar layout if it is vertical. If you have icons only, but it is horizontal, not only is the highlighting obvious, but it is also different. With the vertical layout, the highlighting consists of a colored circle in the background, barely visible. With the horizontal layout, the highlighting consists of a recolored variant of the icon.

In the example images, it is the "Rooms" page that is active. Thus, the home icon has been highlighted.

Example images: