In vector illustration, a line set manages stroke properties across multiple paths, linking width profiles, brushes

https://direct-wiki.win/index.php/The_Complete_Beginner%E2%80%99s_Guide_to_HVAC_Line_Set_Installation

In vector illustration, a line set manages stroke properties across multiple paths, linking width profiles, brushes, caps, and joins so global adjustments propagate cleanly without redrawing individual elements.