Hi Reber,
That indicates that only some tracks in the folder have that feature activated. The same thing happens with the Mute and Solo buttons. If only some of the tracks in the folder are muted or soloed, then those folder buttons will only be half lit.
In addition, you can click those folder buttons to quickly toggle those features for all tracks in a folder on/off. So for example, to mute/unmute all tracks in a folder, click the folder's Mute button.
Scott
--
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