a) without the text is fine (i.e just the apple)
b) color can change
c) it can just the outline, or some abstract representation of it!
2) I'd like to highlight the fact that the conference is in Hawaii!
So maybe some palm trees? and something about the ocean (given the name of the conference) or use our existing logo as a 'sun' in a sunset? I'm attaching some images of logos that look neat. But also open to totally new/other designs :)
3) Besides traditional 'compact' (square?) logos - i'm also ok w/ a 'wider' logo (more of an 'art illustration' as this will be going on the header of the conference website.
4) Kind of dig the 'retro' style hawaii logos...but also hoping to see some totally different ones!
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