diff --git a/taichi.graphics/contributors_taichi-dev_taichi-docs-zh-cn_12.png b/taichi.graphics/contributors_taichi-dev_taichi-docs-zh-cn_12.png
index 2f1e275..e8ea740 100644
Binary files a/taichi.graphics/contributors_taichi-dev_taichi-docs-zh-cn_12.png and b/taichi.graphics/contributors_taichi-dev_taichi-docs-zh-cn_12.png differ
diff --git a/taichi/contributors_taichi-dev_taichi_18.png b/taichi/contributors_taichi-dev_taichi_18.png
index 7012b6a..edd3317 100644
Binary files a/taichi/contributors_taichi-dev_taichi_18.png and b/taichi/contributors_taichi-dev_taichi_18.png differ