How to organically fit the application into the style of VKontakte?

Question

Design

I am making an application for communities in VK, and I want it to fit seamlessly into the overall design.
Are there ready-made libraries for this, or at least styles? Maybe you need to pull out .css from VK and use it? Or maybe some other libraries support the vk style as an extension (not very heavy)?
Googling didn't turn up anything, but maybe I googled it wrong

Answer 1

For this, there are no such packages and are not expected yet)
Turn the knobs as prettier)