//  Create a square
let square = Rectangle::<Rgb565>
    ::new( Coord::new( 60, 60 ), Coord::new( 150, 150 ) )     //  From (60, 60) to (150, 150)
    .fill( Some( Rgb565::from(( 0x00, 0x00, 0xff )) ) );  //  Fill with Blue

//  Draw square the new faster way, as Pixel Blocks
draw_blocks(&mut DISPLAY, square);