Album covers not being scaled on mobile UI / narrow browser window

[gvolt]

If Volumio's UI is displayed in a desktop browser, album covers generally seem to be scaled dependently from the width of the browser window. But the cover image is scaled down only until the width of the browser window is reduced to around 1000 px (?) - below that the width of the image size switches back to 100%.

On the mobile UI cover images do not get scaled at all.

In both cases the cover image regularly is not fully visible.

Don't know if this is intended behaviour or a bug - but thought it's worth to be reported. ;)