在后台目录新建：

bash
展开代码
vanblog# mkdir data/static/markdown-themes/

然后去找一款主题，比如这里：https://theme.typora.io/

举个例子，比如第一个，点击后进入：https://github.com/sumruler/typora-theme-phycat/releases

我直接下载到这里：

bash
展开代码
vanblog/data/static/markdown-themes# wget https://github.com/sumruler/typora-theme-phycat/releases/download/v2.0.3/typora-theme-phycat.zip

解压：

bash
展开代码
vanblog/data/static/markdown-themes# unzip typora-theme-phycat.zip
Archive:  typora-theme-phycat.zip
   creating: phycat/
  inflating: phycat/HarmonyOS_Sans_SC_Regular.woff
  inflating: phycat/phycat.dark.css
  inflating: phycat/SourceHanSerifCN-Medium.ttf
  inflating: phycat/SourceHanSerifCN-Bold.ttf
  inflating: phycat/HarmonyOS_Sans_SC_Bold.woff
  inflating: phycat/phycat.light.css
  inflating: phycat/Cascadia-Code-Regular.ttf
  inflating: phycat-caramel.css
  inflating: phycat-cherry.css
  inflating: phycat-dark.css
  inflating: phycat-forest.css
  inflating: phycat-mauve.css
  inflating: phycat-mint.css
  inflating: phycat-prussian.css
  inflating: phycat-sakura.css
  inflating: phycat-sky.css
  inflating: README.md
vanblog/vanblog/data/static/markdown-themes# ll
total 29104
drwxr-xr-x  3 root root     4096 Dec 28 15:06 ./
drwxr-xr-x 12 root root     4096 Dec 28 15:03 ../
drwxr-xr-x  2 root root     4096 Dec 27 20:12 phycat/
-rw-r--r--  1 root root     8077 Dec 27 20:12 phycat-caramel.css
-rw-r--r--  1 root root     8251 Dec 27 20:12 phycat-cherry.css
-rw-r--r--  1 root root     6594 Dec 27 20:12 phycat-dark.css
-rw-r--r--  1 root root     8139 Dec 27 20:12 phycat-forest.css
-rw-r--r--  1 root root     8335 Dec 27 20:12 phycat-mauve.css
-rw-r--r--  1 root root     8226 Dec 27 20:12 phycat-mint.css
-rw-r--r--  1 root root     8262 Dec 27 20:12 phycat-prussian.css
-rw-r--r--  1 root root     8226 Dec 27 20:12 phycat-sakura.css
-rw-r--r--  1 root root     8026 Dec 27 20:12 phycat-sky.css
-rw-r--r--  1 root root     6480 Dec 27 20:12 README.md
-rw-r--r--  1 root root 29687713 Dec 27 20:12 typora-theme-phycat.zip

后台 站点设置 → 布局 里：

亮色填：/static/markdown-themes/xxx-light.css

暗色填：/static/markdown-themes/xxx-dark.css

填写后提交：