I made HackerCards(https://chrome.google.com/webstore/detail/hackercards/ncblkm...) to easily skim over HackerNews on chrome new tab page.

Another one is Hijri for Chrome(https://chrome.google.com/webstore/detail/hijri-for-chrome/m...), a Hijri date viewer that too made for myself for tracking ramadan fasting count.

And yes my own Chrome theme 'Space Grey'(https://chrome.google.com/webstore/detail/space-grey/cohabkm...)