def warning_tool(color='orange'):
    warning = gv.Polygons([]).opts(line_color=color, line_width=3, fill_color=color, fill_alpha=0.2)
    pen = FreehandDraw(source=warning)
    return (pen, warning)
def warning_tool(color='orange'):
    warning = gv.Polygons([]).opts(line_color=color, line_width=3, fill_color=color, fill_alpha=0.2)
    pen = FreehandDraw(source=warning)
    return (pen, warning)