Function draw_rectangle_lines_rounded_from_rect 

pub fn draw_rectangle_lines_rounded_from_rect(
    rect: Rect,
    radius: f32,
    thickness: f32,
    color: Color,
)

Draws rounded, outlines of a rectangle using a Rect where all corners have the same radius. Use draw_rectangle_lines_rounded_from_rect_ex() to set all radii separately.

Examples

draw_rectangle_lines_rounded_from_rect(rect, 20.0, RED); // 20.0 is the radius