I've found toolbars so much harder to read for the last decade than they were before, ever since flat design removed all color and solids and made everything look like squiggles of the same weight.
Toolbar icons used to be much more easily distinguishable by color and shape and weight and shading. [1] How long is the ultra-flat design trend going to last...?!
Is it a technological issue on the web at this point? Once we get complete browser support for color fonts [2], is that going to give us rich-color icon fonts? Because I just cannot wait.
[1] http://www.mswordhelp.com/wp-content/uploads/2011/07/toolbar...