https://productforums.google.com/forum/#!topic/chrome/vmuxgGrVYDQ
- Locate the "custom.css" file inside Chrome's "user data" folder, (default:
C:\Users\%username%\AppData\Local\Google\Chrome\User Data\Default\User StyleSheets\
on Windows 7, or
%userprofile%\Local Settings\Application Data\Google\Chrome\User Data\Default\User StyleSheets\
on XP)
- Open the "custom.css" file with Notepad, (i.e. just double-click it; it should open in Notepad by default)
- Copy and paste the following line of text into the file:
A:visited { color: red ! important }
- Save the changes to the file by pressing [Ctrl]
, or just close Notepad and click "Yes" when it asks if you want to save changes. That's it! You don't even have to restart Chrome, it applies the changes instantly!
Tip for experts: Not only can you change "red" to any common color (i.e. "magenta"), you can also use RGB values, using either old-school-HTML-style hexadecimal values, or the rgb() macro For example, you could change it to bright yellow by putting in:
A:visited { color: #FFFF00 ! important }
or you could do the same thing with
A:visited { color : rgb(255,255,0) ! important }
You can Google "HTML RGB colors" for more info