The radius of the rectangle corner rounding, as a percentage of the story width.
The height of the rectangle, as a percentage of the story height.
Clockwise rotation angle of the rectangle, in degrees; 0-360.
The width of the rectangle, as a percentage of the story width.
The abscissa of the rectangle's center, as a percentage of the story width.
The ordinate of the rectangle's center, as a percentage of the story height.
See
Telegram Bot API: StoryAreaPosition