change the orange square

I would like to change the orange square at my home... I would like to have a big picture instead of that orange square that doesn't look good at all... also want to remove the +info...

Hi!

Unfortunately, we don't provide any services for editing themes for individual users. However, we have provided some helpful tutorial for those who want to change the background on our blog: https://smthemes.com/blog/browser-devtools-is-at-your-service-or-how-to-change-theme-colors/