How to add a right margin to the Visual Studio Code editor?

1. Open Settings:

• You can open the settings directly by pressing Ctrl + , or by clicking the gear icon in the bottom-left corner and selecting 'Settings'.

1. Edit Settings (JSON):

• In the settings search box, type settings.json and click the 'Edit in settings.json' link that appears in the search results. This will open a JSON file where you can add or modify settings.

1. Add or Modify editor.rulers Setting:

• In the settings.json file, you can add or modify the editor.rulers property. This property accepts an array where each number specifies the column position for a vertical ruler. For example, if you want to add rulers at columns 80 and 120, you should set it as:

json
"editor.rulers": [80, 120],

• This will add two vertical rulers at columns 80 and 120 in your code editor, helping you manage code width and keep your code tidy.

1. Customize Ruler Styles:

• If you want to customize the color or style of the rulers, you can use the workbench.colorCustomizations setting. Add the following configuration in settings.json:

json
"workbench.colorCustomizations": {
    "editorRuler.foreground": "#ff4081"
}

• This will set the ruler color to pink. You can change the color code to your preference.

1. Save and Close Settings:

• After making the above changes, save and close the settings.json file. The settings will take effect immediately, and you can see the added rulers in the editor.

By following these steps, you can easily add and customize the rulers in the Visual Studio Code editor. This feature is particularly useful for maintaining clear and consistent code formatting, as well as for reading and maintaining code.