String property default value?

Coding Python Support
1

i added a string property to a panel
but in the panel GUI the filed is black

is there a way to show a default value in the definition
or may be assign some value and how ?

i need like 2 or 3 value like cu - al or st

thanks
happy bl

2

https://docs.blender.org/api/current/bpy.props.html?highlight=default#bpy.props.StringProperty