hi how was he able to set the color of this embed and set the photo as a thumbnail


(I know that this code has a lot of repetition and is not optimized I tried to use different values)
code:

export const metadata: Metadata = {
  title: 'title',
  description:
    '...',
  icons: './favicon.ico',
  openGraph: {
    title: {
      template: 'title',
      default: 'title',
      absolute: 'title',
    },
    description:
      '...',
    images: '/icon.png',
    locale: 'pl-PL',
    type: 'website',
    siteName: 'name',
  },
};