Change the color, style, or weight of a line - Microsoft Support

Change the look of a line by applying a Quick Style, or customizing the color, style, or weight individually.

Change the look and feel of Microsoft 365 - Microsoft Support

Help, Custom Line Styles

Add a border to a table in Office for Mac - Microsoft Support

Video: Customize a line chart - Microsoft Support

No Rows Message, Tablix

Dark Mode in Word - Microsoft Support

How to Draw and Manipulate Arrows in Microsoft Word

support.content.office.net/en-us/media/3499d00b-fc

Survey Style & Motion

Excel sparklines: how to insert, change and use

Formatting changes on horizontal lines reverting to default after - Microsoft Community

Change the look of a table - Microsoft Support