> it might cause at least a little potential confusion to people who aren't used to that style<
Would it? I find people (from outside the site that I try to pull into vDip) are actually more confused about how all units don't even have unique colors of their own.
I mean, only the webDip family uses such model. PlayDip, Backstabbr, Diplicity, Conspiracy, jDip, DAIDE Diplomacy, etc etc etc all have units with unique colors for each power. So does the board game. It's the closest we have to a standard, and it's a standard for good reason.
>Have we had any issues with the "vanilla" icons that have necessitated a change, or is it just aesthetics?
Aesthetics is certainly a factor, but the current setup *is* confusing for many. What can be more confusing than units shifting colors!?
If France's Army Paris sits in Paris, it's pure green.
If France's Army Ruhr sits in Ruhr, it's green with a blue square around it.
If France's Fleet Brest sits in Brest, it's pure grey.
If France's Fleet English Channel sits in English Channel, it's grey with a blue square around it.
Of course, that's my own personal impression when I first came to this site, one also shared by many players. Perhaps we could try a poll?
>it wasn't very obvious at a glance who's units were where on the board<
That's a problem that requires a simple thing to get solved:*high contrast*.
High contrast between the powers' map colors and the powers' unit colors means:
1) England's map color should have a tone different from France
2) English units' color should have a tone different from England's map color