I have noticed the INDIGO logo style, and that it has the same letter "g" as in logitech, designmodo and some other brand's packaging I know of.
I can't find the original font, nor its vendor/creator. First I thought it was a modified custom-made font for logitech, but since others seem to use it as well, it might be a commercial font face. Do you know more? Any source is much appreciated. Thanks in advance!