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Alright, so it looks like it's up to us to figure out the site attributes and a way to vote on them.
I think having a single post that will link to the others will help with the organization, so here it is:
I'm not sure why the site name and domain should be chosen separately. All of the existing Stack Exchange sites have them being the same, and not doing this for WebApps would be confusing.
I am quite sure that the site logo and style should be combined. After all - a purple logo will not blend well with an orange theme...