I have come across "bookmarklets" and found out I can change background color of any page. What I tried and failed was changing of some particular area. I have taken screenshot of debugger in opera. The color I want to change is highlighted on the right side. I hope this screen is sufficient to generate bookmarklet script to past in the address bar.
I want that color to be white.
https://i.sstatic.net/QYgcX.jpg
Could you please help me generating the bookmarklet code?
Stackoverflow has a rule that you have to first post your own work and then we will try to help you out, we can't help you out if you just post a screenshot. Anyways this is how its done with javascript.
var element = document.getElementById('ln');
element.style.backgroundColor = "white";
I hope you will be careful next time and will post your own work before asking for help.