Change the theme and font of demo gifs

[FollowTheProcess]

Summary

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.60%. Comparing base (b6a4c23) to head (3c92a04).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #126   +/-   ##
=======================================
  Coverage   91.60%   91.60%           
=======================================
  Files           6        6           
  Lines        1299     1299           
=======================================
  Hits         1190     1190           
  Misses         77       77           
  Partials       32       32           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.