diff --git a/images/logo.png b/images/logo.png
index 014a63a..8f23e45 100644
Binary files a/images/logo.png and b/images/logo.png differ
diff --git a/images/string-intern/string_intern.png b/images/string-intern/string_intern.png
index 6511978..8dc256f 100644
Binary files a/images/string-intern/string_intern.png and b/images/string-intern/string_intern.png differ
diff --git a/images/tic-tac-toe.png b/images/tic-tac-toe.png
index 9c25117..6255236 100644
Binary files a/images/tic-tac-toe.png and b/images/tic-tac-toe.png differ
diff --git a/images/tic-tac-toe/after_board_initialized.png b/images/tic-tac-toe/after_board_initialized.png
index 616747f..ac0f322 100644
Binary files a/images/tic-tac-toe/after_board_initialized.png and b/images/tic-tac-toe/after_board_initialized.png differ
diff --git a/images/tic-tac-toe/after_row_initialized.png b/images/tic-tac-toe/after_row_initialized.png
index 520d700..8051d81 100644
Binary files a/images/tic-tac-toe/after_row_initialized.png and b/images/tic-tac-toe/after_row_initialized.png differ