The tiny few pixel wide audio bar below the microphone level indicator is unacceptably small and very hard to see. It's silly to have the mic level adjust indicator so big, but the actual audio bargraph only a few pixels wide. This leads to not being able to see your audio level at a glance.
You shouldn't have to open the Audio Mixer window to get a proper VU bargraph, just dock this permanently to the main window. The Scene window can easily be comrpessed, it doesn't need to be that big, freeing up room for the audio VU meter.
Audio is just as IMPORTANT as video!