If you are tired of the look of BlinkFeed on your HTC One M8, you still have 3 other color themes to choose which not only changes the appearance of BlinkFeed, but the entire Sense 6.0 gets a fresh color.
To change theme on HTC One M8, do as follows:
1. Open Settings and go to Personalize
2. Tap to open Theme settings
3. As you can see, there are 4 color theme options to choose, and you just need to touch your favorite theme and hit the Apply button.
4. A message appears on the screen and you can choose whether to change the wallpaper (which is based on your new theme) or not.