Request: Layer Visibility Icons

Could you please swap the color tones of 'visible layer' eye icons?

- make visible a BLACK icon,

- the hidden layer icon GREY

My mind automatically thinks the darker 'bolder' layer should be visible - but this isn't the case... it's the lighter grey eye icon that is currently used for the visible layer... 

... doens't seem to be intuative in it's current state - and always confuses me...