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Title
What is the vertical gray bar in Code Editor? -
Description
What is the vertical gray bar in Code Editor? Can it be disabled or the size adjusted?
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Resolution
The vertical gray bar in the editor is the right margin line. It is for advisory purposes only.
This can be adjusted or disabled by going to View | Preferences | Editor | General under the Right Margin settings.
You can choose to show or hide the gray bar, and you can set the size of the margin.