Revise: Use smaller icons for TConsole Log button

As the buttons are set to 30x30 there was little point in using 48px square
icons and one tester reported that they were not too distinct; I have
redone them based upon a 32px square starting point so they should not be
scaled down so drastically by the icon engine.

Signed-off-by: Stephen Lyons <slysven@virginmedia.com>