I am struggling where can I edit the text of "Design" , "Graphics" , "Motion" , and "Videos"
I tries the "Block Configuration" but no clue at all
No Universal solution fits all special business requirements. Our experienced team is ready with ideas and state-of-the-art technical solutions to consult the best solution within your budget.
Please go to /admin/structure/taxonomy/blog_categories to edit categories. Also, please take a look at documentation enclosed to theme package. It will be helpful when you build your site.