code: def is_hex_color_like(color: MaybeColor) -> bool:
      """Check whether the input looks like a hex color.
  
      This is meant to be lightweight, and not a definitive answer. The definitive solution is to try
      to convert and see if an error is thrown.
      """
      return (
          isinstance(color, str)
          and color.startswith("#")
          and color[1:].isalnum()  # Alphanumeric
          and len(color) in {4, 5, 7, 9}
      )
  
file_path: streamlit/lib/streamlit/color_util.py
imports: from typing import Any, Callable, Collection, Tuple, Union, cast
  from typing_extensions import TypeAlias
  from streamlit.errors import StreamlitAPIException
label_desc: Use image node_id 4 for calling a global function with example usage: is_hex_color_like(color) and returns: unknown