Symbology Type—5 symbology category templates to choose from: Fiber, Coax, Facility, Copper, and ISP:

The symbology textfiles used to define the symbology in each of these categories are in the C:\Program Files\Bentley\Communications 2023\OpenCommsPowerView\Redline folder (default):

Open one of these text files with Notepad to edit it and change the symbology for that category:

In this file, the color is set to 1, line weight is 3, the level is 50, the line code is 0, and the textstyle is Engineering. Edit any of these values to change the color, weight, level, line code, or text style for any of the 5 symbology categories.