diff --git a/images/chat-final.png b/images/chat-final.png index 498f15c..6643448 100644 Binary files a/images/chat-final.png and b/images/chat-final.png differ diff --git a/images/chat-init.png b/images/chat-init.png index bf56f44..1bcc08f 100644 Binary files a/images/chat-init.png and b/images/chat-init.png differ diff --git a/images/consistent-hashing.png b/images/consistent-hashing.png index 5cb5fac..19cb637 100644 Binary files a/images/consistent-hashing.png and b/images/consistent-hashing.png differ diff --git a/images/crawler-full.png b/images/crawler-full.png index ecf0f77..d9c08bc 100644 Binary files a/images/crawler-full.png and b/images/crawler-full.png differ diff --git a/images/crawler-init.png b/images/crawler-init.png index 8979b6e..003b763 100644 Binary files a/images/crawler-init.png and b/images/crawler-init.png differ diff --git a/images/doe-kv-store.png b/images/doe-kv-store.png index fa51b2d..01b001c 100644 Binary files a/images/doe-kv-store.png and b/images/doe-kv-store.png differ diff --git a/images/hash-ring.png b/images/hash-ring.png index 9290520..9fca75c 100644 Binary files a/images/hash-ring.png and b/images/hash-ring.png differ diff --git a/images/kv-availability-and-consistency.png b/images/kv-availability-and-consistency.png index 5e23596..497a16f 100644 Binary files a/images/kv-availability-and-consistency.png and b/images/kv-availability-and-consistency.png differ diff --git a/images/news-feed-final.png b/images/news-feed-final.png index 01b2e63..0abe671 100644 Binary files a/images/news-feed-final.png and b/images/news-feed-final.png differ diff --git a/images/news-feed-init.png b/images/news-feed-init.png index e573d91..e38949e 100644 Binary files a/images/news-feed-init.png and b/images/news-feed-init.png differ diff --git a/images/notification-system-final.png b/images/notification-system-final.png index ae184bb..6b58d49 100644 Binary files a/images/notification-system-final.png and b/images/notification-system-final.png differ diff --git a/images/notification-system-init.png b/images/notification-system-init.png index 310f31b..2ab435e 100644 Binary files a/images/notification-system-init.png and b/images/notification-system-init.png differ diff --git a/images/rate-limiter.png b/images/rate-limiter.png index cfedc0b..c7ba24a 100644 Binary files a/images/rate-limiter.png and b/images/rate-limiter.png differ diff --git a/images/twitter-snowflake.png b/images/twitter-snowflake.png index c3c24b7..12c6f60 100644 Binary files a/images/twitter-snowflake.png and b/images/twitter-snowflake.png differ diff --git a/images/url-shortener-final.png b/images/url-shortener-final.png index 840f70b..9179fef 100644 Binary files a/images/url-shortener-final.png and b/images/url-shortener-final.png differ diff --git a/images/url-shortener-init.png b/images/url-shortener-init.png index bc7ee5c..b4fe0b8 100644 Binary files a/images/url-shortener-init.png and b/images/url-shortener-init.png differ diff --git a/images/zero-to-million.png b/images/zero-to-million.png index 9e27d1c..c9ab734 100644 Binary files a/images/zero-to-million.png and b/images/zero-to-million.png differ