How to change the text font size for a choiceset in bot adaptive card

Question

We have an adaptive card in our bot with two different columnsets - first columnset to provide the user with options to select and the second columnset for the user to select if he is not interested in selecting an option.

The issue is with adjusting the font size for the text in second columnset choice set. Is there any attribute I could use to adjust the size of text in this choiceset?

new ColumnSet()
{
    Columns = new List<Column>()
    {
        new Column()
        {
            Items = new List<CardElement>()
            {
                new ChoiceSet()
                {
                    Id = "FeedbackOptions",
                    Choices = FeedbackChoice,
                    Separation= SeparationStyle.Default,
                    IsMultiSelect =true,
                    Type ="Input.ChoiceSet",                                           
                    Style = ChoiceInputStyle.Expanded
                }
            }
        }
    }
}

Answer 1

根据此处和此处的模式探索，没有可用于配置字体大小的属性。