That is unreadable. It should not zoom out when you zoom out. It needs to stay the same size at any zoom level so you can actually play the game without being zoomed right in. The text is still readable. You can zoom all the way out and hover over a mine or a field and read how many ore/wheat/water is in there, but you can't see what level a building is without either clicking on it or zooming almost all the way in.