#obsidian #css
I saw this plugin [ecustic/obsidian-file-color: An Obsidian plugin for setting colors on folders and files in the file tree. (github.com)](https://github.com/ecustic/obsidian-file-color) but this is not necessary.
You can do something like this simply using css.
```css
background-color: rgba(255, 0, 0, 0.2);
```