Differences in colours for button switches

[pgale]

Not sure if this is by design for some reason but there are differences in colours for the following between a switch that's a light entity and an input_boolean entity. The colours affected are the button background, on colour and icon container:

Such as:
.bubble-button-background
.bubble-icon-container

Is this by design to show differences between boolean types and other switch types that are only on/off?

Ideally I would like the same behaviour whether it's a boolean or light switch. Yes, I can style these in the custom styles but would prefer that to act the same across the on/off types. Is that changeable?

The light switch also has an overlay on the icon-container which I've not been able to identify yet to turn off. Any thoughts?

Thanks.