slayer_of_darkness wrote:
... the blue power level in the bar seems
rather gray, but I can't attest if it was much bluer when I first got it.
The color would not change on usage. You may see variations in color between units of different vintage, as the LCD screens change over the product life. While they are functionally the same, color can render differently among lots. As long as the vertical bar is filled, that is what we refer to as a blue bar, even if it may appear as a blue-gray. If the bar is just an outline, then the power is either all the way down, or that receiver is set to standby.