diff --git a/en/docs/chapter_dynamic_programming/dp_problem_features.assets/climbing_stairs_constraint_example.png b/en/docs/chapter_dynamic_programming/dp_problem_features.assets/climbing_stairs_constraint_example.png
index 0fce4bc6d..50be86d2e 100644
Binary files a/en/docs/chapter_dynamic_programming/dp_problem_features.assets/climbing_stairs_constraint_example.png and b/en/docs/chapter_dynamic_programming/dp_problem_features.assets/climbing_stairs_constraint_example.png differ
diff --git a/en/docs/chapter_dynamic_programming/dp_problem_features.assets/min_cost_cs_example.png b/en/docs/chapter_dynamic_programming/dp_problem_features.assets/min_cost_cs_example.png
index a29b4a603..3c83f92dd 100644
Binary files a/en/docs/chapter_dynamic_programming/dp_problem_features.assets/min_cost_cs_example.png and b/en/docs/chapter_dynamic_programming/dp_problem_features.assets/min_cost_cs_example.png differ
diff --git a/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_dp_step1.png b/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_dp_step1.png
index ffcc5ba1e..42739737f 100644
Binary files a/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_dp_step1.png and b/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_dp_step1.png differ
diff --git a/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_dp_step12.png b/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_dp_step12.png
index 2f5c161a4..4c756fb44 100644
Binary files a/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_dp_step12.png and b/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_dp_step12.png differ
diff --git a/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_solution_initial_state.png b/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_solution_initial_state.png
index dbd4c1ec9..f2b27b9a4 100644
Binary files a/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_solution_initial_state.png and b/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_solution_initial_state.png differ
diff --git a/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_solution_state_definition.png b/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_solution_state_definition.png
index 544458bc1..bbd30a047 100644
Binary files a/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_solution_state_definition.png and b/en/docs/chapter_dynamic_programming/dp_solution_pipeline.assets/min_path_sum_solution_state_definition.png differ
diff --git a/en/docs/chapter_dynamic_programming/edit_distance_problem.assets/edit_distance_dp_step2.png b/en/docs/chapter_dynamic_programming/edit_distance_problem.assets/edit_distance_dp_step2.png
index 20ed2d76e..e4f7146f5 100644
Binary files a/en/docs/chapter_dynamic_programming/edit_distance_problem.assets/edit_distance_dp_step2.png and b/en/docs/chapter_dynamic_programming/edit_distance_problem.assets/edit_distance_dp_step2.png differ
diff --git a/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_dfs_memo_tree.png b/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_dfs_memo_tree.png
index 6e6b28449..0c73cdb14 100644
Binary files a/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_dfs_memo_tree.png and b/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_dfs_memo_tree.png differ
diff --git a/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_dfs_tree.png b/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_dfs_tree.png
index 5c8084133..557d2475f 100644
Binary files a/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_dfs_tree.png and b/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_dfs_tree.png differ
diff --git a/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_dp.png b/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_dp.png
index 76f33789a..d519f468b 100644
Binary files a/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_dp.png and b/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_dp.png differ
diff --git a/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_example.png b/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_example.png
index 3dbe0c2cb..0a5f131d3 100644
Binary files a/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_example.png and b/en/docs/chapter_dynamic_programming/intro_to_dynamic_programming.assets/climbing_stairs_example.png differ
diff --git a/en/docs/chapter_dynamic_programming/knapsack_problem.assets/knapsack_dfs.png b/en/docs/chapter_dynamic_programming/knapsack_problem.assets/knapsack_dfs.png
index 3aac5e5d6..7f7ecd458 100644
Binary files a/en/docs/chapter_dynamic_programming/knapsack_problem.assets/knapsack_dfs.png and b/en/docs/chapter_dynamic_programming/knapsack_problem.assets/knapsack_dfs.png differ
diff --git a/en/docs/chapter_dynamic_programming/knapsack_problem.assets/knapsack_dfs_mem.png b/en/docs/chapter_dynamic_programming/knapsack_problem.assets/knapsack_dfs_mem.png
index 87b85b8cd..4e2bdd2c3 100644
Binary files a/en/docs/chapter_dynamic_programming/knapsack_problem.assets/knapsack_dfs_mem.png and b/en/docs/chapter_dynamic_programming/knapsack_problem.assets/knapsack_dfs_mem.png differ
diff --git a/en/docs/chapter_dynamic_programming/knapsack_problem.assets/knapsack_dp_step14.png b/en/docs/chapter_dynamic_programming/knapsack_problem.assets/knapsack_dp_step14.png
index 189a2ce2e..c9008e904 100644
Binary files a/en/docs/chapter_dynamic_programming/knapsack_problem.assets/knapsack_dp_step14.png and b/en/docs/chapter_dynamic_programming/knapsack_problem.assets/knapsack_dp_step14.png differ
diff --git a/en/docs/chapter_dynamic_programming/unbounded_knapsack_problem.assets/coin_change_dp_step2.png b/en/docs/chapter_dynamic_programming/unbounded_knapsack_problem.assets/coin_change_dp_step2.png
index 170e9d793..19d8c8140 100644
Binary files a/en/docs/chapter_dynamic_programming/unbounded_knapsack_problem.assets/coin_change_dp_step2.png and b/en/docs/chapter_dynamic_programming/unbounded_knapsack_problem.assets/coin_change_dp_step2.png differ
diff --git a/en/docs/chapter_dynamic_programming/unbounded_knapsack_problem.assets/coin_change_example.png b/en/docs/chapter_dynamic_programming/unbounded_knapsack_problem.assets/coin_change_example.png
index 5a21d5a91..157cf43ad 100644
Binary files a/en/docs/chapter_dynamic_programming/unbounded_knapsack_problem.assets/coin_change_example.png and b/en/docs/chapter_dynamic_programming/unbounded_knapsack_problem.assets/coin_change_example.png differ
diff --git a/en/docs/chapter_greedy/fractional_knapsack_problem.assets/fractional_knapsack_example.png b/en/docs/chapter_greedy/fractional_knapsack_problem.assets/fractional_knapsack_example.png
index 64b3a870b..9e10560cb 100644
Binary files a/en/docs/chapter_greedy/fractional_knapsack_problem.assets/fractional_knapsack_example.png and b/en/docs/chapter_greedy/fractional_knapsack_problem.assets/fractional_knapsack_example.png differ
diff --git a/en/docs/chapter_greedy/greedy_algorithm.assets/coin_change_greedy_strategy.png b/en/docs/chapter_greedy/greedy_algorithm.assets/coin_change_greedy_strategy.png
index 78a5ef555..0412e0ce3 100644
Binary files a/en/docs/chapter_greedy/greedy_algorithm.assets/coin_change_greedy_strategy.png and b/en/docs/chapter_greedy/greedy_algorithm.assets/coin_change_greedy_strategy.png differ
diff --git a/en/docs/chapter_greedy/greedy_algorithm.assets/coin_change_greedy_vs_dp.png b/en/docs/chapter_greedy/greedy_algorithm.assets/coin_change_greedy_vs_dp.png
index bc03e9fff..b53735aa6 100644
Binary files a/en/docs/chapter_greedy/greedy_algorithm.assets/coin_change_greedy_vs_dp.png and b/en/docs/chapter_greedy/greedy_algorithm.assets/coin_change_greedy_vs_dp.png differ
diff --git a/en/docs/chapter_greedy/max_capacity_problem.assets/max_capacity_moving_long_board.png b/en/docs/chapter_greedy/max_capacity_problem.assets/max_capacity_moving_long_board.png
index 8b26aad2d..6b4936205 100644
Binary files a/en/docs/chapter_greedy/max_capacity_problem.assets/max_capacity_moving_long_board.png and b/en/docs/chapter_greedy/max_capacity_problem.assets/max_capacity_moving_long_board.png differ
diff --git a/en/docs/chapter_greedy/max_capacity_problem.assets/max_capacity_moving_short_board.png b/en/docs/chapter_greedy/max_capacity_problem.assets/max_capacity_moving_short_board.png
index 56d4f2038..ed2688703 100644
Binary files a/en/docs/chapter_greedy/max_capacity_problem.assets/max_capacity_moving_short_board.png and b/en/docs/chapter_greedy/max_capacity_problem.assets/max_capacity_moving_short_board.png differ
diff --git a/en/docs/chapter_greedy/max_product_cutting_problem.assets/max_product_cutting_greedy_infer1.png b/en/docs/chapter_greedy/max_product_cutting_problem.assets/max_product_cutting_greedy_infer1.png
index cb77b3190..0251cb147 100644
Binary files a/en/docs/chapter_greedy/max_product_cutting_problem.assets/max_product_cutting_greedy_infer1.png and b/en/docs/chapter_greedy/max_product_cutting_problem.assets/max_product_cutting_greedy_infer1.png differ