Zoom Waveform slider knob - Colour it when zoomed in

Hi,

If I’m not mistaken, the Zoom Waveform slider is much smaller and thus it is hard to see if a small zoom level is engaged, allowing it to go unnoticed by the user creating an inaccurate perception of actual waveform height/loudness.

It would be great if the slider/button became coloured, or highlighted or something once a zoom level is engaged.

Thanks

Here is more clearly what I am talking about

proposed solution