The clock with a theme on the desktop of Xiaomi mobile phone was accidentally deleted by the weather ~ how to add it?

When opening the desktop, press the menu button, that is, the one next to the small house on the mobile phone, and an instant menu will appear. Select Edit Mode-Add Gadget-Clock with Black Icon. The black square clock is actually a theme clock, but there is no thumbnail (it should be the third clock).

╮ (╯ ▽ ╰) ╭ I accidentally deleted it before, and it took me a long time to find it. . .