I decided to use SVGs to generate squares and images I need. SVGs are flexible and that should work with me.
I can't figure out how can I generate squares to fit inside the border of Croatia. End result I'd like to have can be seen in (see image below).
IMAGE :
It's pretty easy to generate squares in some rectangular shape. Since border of Croatia is not rectangular the only thing I have in mind is to do it manually, but this is not flexible. What if I want to create bigger or smaller squares just to test it out and fit them within borders.