g.fillRect(UpperLeftGraph.x, UpperLeftGraph.y, WIDTH + 1, HEIGHT + 1);
// Sfondo grigio per label informativa
g.setColor(Color.LIGHT_GRAY);
g.fillRect(0, 0, UpperRightGraph.x + RIGHT_SPACE, UpperLeftGraph.y - 10);
g.setColor(Color.BLACK);
g.drawRect(0, 0, UpperRightGraph.x + RIGHT_SPACE, UpperLeftGraph.y - 10);
Font fn = new Font("Arial", Font.ITALIC, 16);
g.setFont(fn);
g.drawString("Single left click and drag to zoom, single right click to choose scatter options", 50, 20);
// Bordi neri del grafico
g.setColor(Color.BLACK);