How to put color on svg?

Question

SVG

Colleagues, good afternoon!
There is such a map:

It should be like this:

Question: how to apply color? I googled in the direction of svg filters, but google did not help, or googled badly.
I would like to thank you all for your help!

Answer 1

Try applying css filters to the block with svg

Answer 2

The answer to the question is ingenious - change the colors of the svg layers according to the shading colors)