Core PL Translations

Change-Id: I05396c3d71455e7dd1e2340e4a1a4581801f2399
FB: Volume panel background color && transparency [2/2]

Allow user to specify background color and transparency level
    for volume panel.

PS: color now applies instantaneously after setting the preference.
Change-Id: I23a09d302fe090fe4aed6dd9024c73056d14fba1