Audio Level

Click on   Options in the function bar below the main menu and select Global Options - Audio Level on the left.

Level display settings

Here you can set the various modes of the audio level display:

For the RMS level a time window of 600 milliseconds  located before the locator is evaluated. Therefore, the RMS level display starts indicating even before a sound object, which is quite normal in this connection.

Background colors of stereo channels

Here you can select a background color for the level display of every stereo channel:

...Other Options