The Thumbnail View Icon Toolbar Button, Standard View Icon Toolbar Button, and Image View Icon Button are arranged, left to right, in the exact reverse sequence as their corresponding Function Keys F8, F7 and F6. This forces the brain and the eye to work in against each other in an opposite fashion.
It would be far more intuitive and make more sense to switch the positions of the icons such that the Image View Icon Button corresponding to the F6 Function Key is the leftmost of the three buttons. Leave the Standard View Icon Toolbar Button corresponding to the F7 Key where it is, and place the Thumbnail View Icon Button corresponding to the F8 Function Key in the rightmost of the three positions.
