diff --git a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg1.png b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg1.png
index c481457..8aa831e 100644
Binary files a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg1.png and b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg1.png differ
diff --git a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg2.png b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg2.png
index bf8fb38..e68af06 100644
Binary files a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg2.png and b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg2.png differ
diff --git a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg3.png b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg3.png
index f871d3d..0164f8c 100644
Binary files a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg3.png and b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg3.png differ
diff --git a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg4.png b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg4.png
index 2e3d871..fbb00e8 100644
Binary files a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg4.png and b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg4.png differ
diff --git a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg5.png b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg5.png
index fe383b7..f68c2aa 100644
Binary files a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg5.png and b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg5.png differ
diff --git a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg6.png b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg6.png
index 5024ceb..6524d85 100644
Binary files a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg6.png and b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg6.png differ
diff --git a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg7.png b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg7.png
index efe76f8..6c44ba5 100644
Binary files a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg7.png and b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg7.png differ
diff --git a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg8.png b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg8.png
index 2727aa3..9a576d1 100644
Binary files a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg8.png and b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg8.png differ
diff --git a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg9.png b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg9.png
index 4463aa2..a31651e 100644
Binary files a/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg9.png and b/lidee-tool/tool-spring-boot-starter-captcha/src/main/resources/images/jigsaw/original/bg9.png differ