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[andy128k]

Closes #279

[alexander-akait]

@andy128k Sometimes I think will be great to revise default icons and them sizes, because I think we generate a lot of unnecessary stuff right now

[andy128k]

There are a few of such issues already raised. So, that's probably true.
I think current shape of configuration and defaults is a bit obscure. I'd like to refactor it into something more readable. That hopefully will lower the bar for contributors.