diff --git a/TeXmacs/packages/themes/dark/dark.ts b/TeXmacs/packages/themes/dark/dark.ts
index 78d689d709..a18dd65e12 100644
--- a/TeXmacs/packages/themes/dark/dark.ts
+++ b/TeXmacs/packages/themes/dark/dark.ts
@@ -74,9 +74,9 @@
 
   <assign|pre-edit|<macro|body|<with|ornament-color|#707070|ornament-sunny-color|#808080|ornament-shadow-color|#606060|ornament-border|1px|ornament-hpadding|2px|ornament-vpadding|2px|<smash|<ornament|<with|color|white|<arg|body>>>>>>>
 
-  <assign|focus-color|#3A86FF33>
+  <assign|focus-color|#ffffff0e>
 
-  <assign|selection-color|#3A86FF33>
+  <assign|selection-color|#ffffff20>
 
   <assign|scheme-prompt-color|dark green>
 
diff --git a/devel/213_22.md b/devel/213_22.md
index a3886ad61f..73c201e9c1 100644
--- a/devel/213_22.md
+++ b/devel/213_22.md
@@ -1,5 +1,26 @@
 # [213_22] Replace focus border with translucent background
 
+## 如何测试
+
+1. 打开软件，进入深色模式
+2. 插入一个python环境，输入print("hello world")并运行
+3. 观察，文档底色为深色，当前所处环境为很浅的透明灰色
+4. 鼠标拖动选中一部分文本，观察，选中文本的颜色相较于环境更深一些，可以做到较为舒适的高亮效果
+
+## 2026/03/31 优化黑夜模式下的focus_color和selection-color
+
+### What
+使用 #ffffff0e 作为 focus_color
+使用 #ffffff20 作为 selection-color
+
+### Why
+深色主题下的高亮颜色很瞎眼，需要改
+
+### How
+修改 dark.ts 文件中的 focus-color 和 selection-color 的颜色
+
+## 2026/03/04
+
 Issue: https://github.com/MoganLab/mogan/issues/2759
 
 Replace the cyan border (`#0ff`) used to indicate focused structures (tables, math formulas, etc.) with a translucent background fill, improving visual clarity and reducing distraction.