highlight-bad-chars.badCharDecorationStyle cursor style options?

[metablaster]

This is a question for:

	"highlight-bad-chars.badCharDecorationStyle": {
		"cursor": "square",
		"backgroundColor": "rgba(255,0,0,0.3)",
		"borderWidth": "1px",
		"borderStyle": "solid",
		"borderColor": "rgba(255,0,0,0.6)"
	},

What are acceptable values for "cursor" beyond "square"?