Excerpt Image and Text Settings

Hi,
I do really love your work with Nisarg theme!

I was wondering if it would be possible to edit excerpts, in particular:

– Image size/alignment

– Excerpt text to reflect html and spaces of the original post

I am sure this is possible editing the code, could you just point me to the code files i should edit to customize excerpts?

I have gne through the files, i have a bit of coding experience but i can’t find where the excerpts settings are..

Thanks,
Luca