It indeed seems the currently available public Linux download is missing the icon set, at least according to my machine. I apologize for the late reply, we've been working day and night to finish the new update (almost there!), and somehow managed to miss this post (I'm supposed to be receiving e-mail notifications about new posts, but that didn't seem to happen).
In any event, these are supposed to be the logos:
Love your product, see ya
Thank you, it means a lot to hear positive feedback! We hope you'll also like the new update. (which is coming any time now!) And, just as a footnote, it's AudioNodes, emphasizing its modular nature, but that's kinda beside the question.