Now there is no possibility to change thickness of modified line indicator. I can do it. But placement and thickness is same, according to other applications. Move it before line numbers is possible, but there are other signs, e.g. - bookmarks, code folding...
Do you mean it too thick or too thin? -- <https://forum.pspad.com/read.php?2,78105,78112> PSPad freeware editor https://www.pspad.com