如何在A帧中进行颜色解析，以从颜色字符串中找到r/g/b的量？

def parse_color(color_string):
    # 正则表达式匹配RGB表示方式的颜色值
    rgb_match = re.match(r"rgb\((\d+),\s*(\d+),\s*(\d+)\)", color_string)
    if rgb_match:
        r, g, b = map(int, rgb_match.groups())
        return r, g, b

    # 正则表达式匹配RGBA表示方式的颜色值
    rgba_match = re.match(r"rgba\((\d+),\s*(\d+),\s*(\d+),\s*\d+(\.\d+)?\)", color_string)
    if rgba_match:
        r, g, b = map(int, rgba_match.groups()[:3])
        return r, g, b

    # 十六进制表示方式的颜色值
    if color_string.startswith("#"):
        hex_value = color_string[1:]
        if len(hex_value) == 3:  # 缩写形式，如"#F00"
            r = int(hex_value[0] * 2, 16)
            g = int(hex_value[1] * 2, 16)
            b = int(hex_value[2] * 2, 16)
        elif len(hex_value) == 6:  # 完整形式，如"#FF0000"
            r = int(hex_value[:2], 16)
            g = int(hex_value[2:4], 16)
            b = int(hex_value[4:], 16)
        else:
            raise ValueError("Invalid hex color value")
        return r, g, b

    raise ValueError("Invalid color string")

# 示例用法
color_string = "rgb(255, 0, 0)"
r, g, b = parse_color(color_string)
print(f"r: {r}, g: {g}, b: {b}")