This started as my own ad removal for Yahoo Mail, because the solutions I found were deficient. My style does more than just clean up the mail webpage, it will affect other Yahoo pages! It removes sponsored content and trends from Yahoo's homepage too (at least the content that is labeled as such).
A dark theme compatible with *NEW* Yahoo! Mail. Charcoal background combined with smooth grey text and cool teal and violet highlights makes a theme that is easy on the eyes.
Remove unneeded elements in Yahoo! Mail web application, focusing only on mail elements, and optimal use of space on big screens.
Dark theme for Yahoo's fantasy leagues. IN BETA!
clean Yahoo Mail page
A Dark style theme for yahoo fantasy football
Compacted Yahoo header, simply to leave things just for mail, along with removed ads and apps. Hidden Ads, Top-bar changed into a pop-down Top Bar on mouse over, and generally made more room for the e-mails while removing some extras. Works with all Themes, so feel free to choose any.
remove right sidebar, keep message list as wide as browser window is
[By: Leon Williams] This is a dark purple theme for Yahoo! Answers. This is also my first submitted Stylish theme. If you have comments, questions, or concerns regarding this theme, feel free to contact me or leave a post below.