<p>As for design, it is hard to notice transparency change on hover, especially on bright layers, like a transport map. Icons are confusing: there should be at least tooltips. Having controls at the right side is confusing: I understand this would make more sense when other improvements in Saman's presentation are implemented, but for now I think this is a change too big, and will confuse a lot of user, especially with other map providers keeping their zoom controls at the left or top sides.</p>
<p>I like that panels don't shift the map, unlike regular tabs (e.g. "Export"). But they shift all the buttons, I'm not sure this is good.</p>
<p>Regular panels (the same "Export") are separated from the map with a gray line, but new panels are not. Since there are lines in new panels as well, I suggest adding those vertical separating lines.</p>
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