Changed the default value of unapplied soundsources in the soundsource panel to black.

lib/+artoa/+controller/+edit/+timeOfArrival/createSoundsourceColorsPanel.m

@@ -30,7 +30,7 @@ isLeftItem = true;
 for i = 1:length(fnames)
     colorIndex = artoa.soundsources.colorregister.getColorIndex(fnames{i}, artoaWorkspace.soundsourceColorRegister);
     if colorIndex == 0
-        color = [1 1 1];
+        color = [0 0 0];
     else
         color = artoaWorkspace.soundsourceColors(colorIndex, :);
     end