Describe the feature you'd like

setUnderline and similar which, if they're there, they will format the text

Describe alternatives you've considered

Null validation for withBold (Accepts empty values and treat it as true if the function was left empty) [Also with other text formatting like underlined, strikethrough, etc]

Additional context

An Image is worth more than thousand words... if you can read bytes

Minecraft version

Other

Modloader

Fabric