gutter icon highlight invalid lines

[ctf0]

"todo-tree.highlights.defaultHighlight": {
        "icon": "alert",
        "type": "text-and-comment",
        "background": "#FFFFFF",
        "foreground": "#000000",
        "gutterIcon": true,
        "iconColour": "#F0AD64",
    },
"todo-tree.general.tags": [
        "BUG",
        "HACK",
        "FIXME",
        "TODO",
        "XXX",
        "TEST",
        "REVIEW",
        "console",
        "dd",
    ],
"todo-tree.regex.regex": "((//|#|({{|<!)--|/\\*|^)\\s*($TAGS)|^\\s*- \\[ \\])",