Thanks for the offer George.
An important aspect of a logo is “brand identity”, so logos should not change too often. The current logo has very strong brand recognition, which is a good thing, but is perhaps quite old fashioned, though some would say that it is so “retro” as to be trendy 
There is no great urge among the developers to change the logo, though there is some interest in improving the look of the entire Audacity visual experience (which is all pretty retro). Audacity does not currently support “theming” (skinning) though there has been some experimental work done in that area which will hopefully come back at some point. You may find this post interesting/informative: https://forum.audacityteam.org/t/new-forum-logo/13470/11