diff --git a/Readme.md b/Readme.md
index d662036..d751503 100644
--- a/Readme.md
+++ b/Readme.md
@@ -1,4 +1,26 @@
-The built-in CSS will be replaced after update / reinstall, DO NOT MODIFY THEM.
+![](https://cdn.jsdelivr.net/gh/FishionYu/Rayyu-sPic@master/img/transINSIDE_THEME.jpg)
 
-Refer https://support.typora.io/Add-Custom-CSS/ when you want to modify those CSS.
-Refer https://support.typora.io/About-Themes/ if you want to create / install new themes. 
\ No newline at end of file
+# Typora-inside-theme
+
+[![img](https://camo.githubusercontent.com/7c4792033c4a6c59b3a6f22e3ef0a2cc4082c72b/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f626c6f672d25343068616e72792d7265643f7374796c653d666c61742d737175617265)](https://blog.hanry.top/) [![GitHub stars](https://camo.githubusercontent.com/8758623e63ae1dee11c2000e4a58d02c0f099562/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f73746172732f46697368696f6e59752f7479706f72612d696e736964652d7468656d653f7374796c653d666c61742d737175617265)](https://camo.githubusercontent.com/8758623e63ae1dee11c2000e4a58d02c0f099562/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f73746172732f46697368696f6e59752f7479706f72612d696e736964652d7468656d653f7374796c653d666c61742d737175617265) [![GitHub](https://camo.githubusercontent.com/28a7d8442f19baa4b04c405d9d940df85fde33f4/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f6c6963656e73652f46697368696f6e59752f7479706f72612d696e736964652d7468656d653f7374796c653d666c61742d737175617265)](https://camo.githubusercontent.com/28a7d8442f19baa4b04c405d9d940df85fde33f4/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f6c6963656e73652f46697368696f6e59752f7479706f72612d696e736964652d7468656d653f7374796c653d666c61742d737175617265)
+
+> This is a typora theme inspired by a Hexo [inside](https://github.com/ikeq/hexo-theme-inside) theme.
+
+# Install
+
+1. Download this zip from Github, extract this file, then you can get the `Inside` folder and `inside.css` .
+2. Open typora, click `Preference` → `Apperance` → `Open Theme Folder `.
+3. Put `Inside` folder and `inside.css` into the open folder.
+4. Close Typora totally, reopen Typora and select `Theme` → `inside` from the menu bar.
+
+# Plan
+
+-  Bug fix
+-  Add dark theme
+-  Add a bigger font size version
+
+# Screenshot
+
+![](https://cdn.jsdelivr.net/gh/FishionYu/Rayyu-sPic@master/img/transJJYTdA.png)
+
+![](https://cdn.jsdelivr.net/gh/FishionYu/Rayyu-sPic@master/img/trans1aGQwy.png)
\ No newline at end of file