src/vs/workbench/contrib/terminal/browser/terminalTypeAheadAddon.ts/TypeAheadStyle/_getArgs
class TypeAheadStyle:	private _getArgs(style: ITerminalConfiguration['localEchoStyle']) {
		switch (style) {
			case 'bold':
				return { applyArgs: [1], undoArgs: [22] };
			case 'dim':
				return { applyArgs: [2], undoArgs: [22] };
			case 'italic':
				return { applyArgs: [3], undoArgs: [23] };
			case 'underlined':
				return { applyArgs: [4], undoArgs: [24] };
			case 'inverted':
				return { applyArgs: [7], undoArgs: [27] };
			default:
				const { r, g, b } = Color.fromHex(style).rgba;
				return { applyArgs: [38, 2, r, g, b], undoArgs: [39] };
		}
	}