I’m not a graphic designer, but here’s a mockup of how I’d like the Tumblr dashboard to look.
1.) Replace the words “liked your post” etc. with the actual like/reblog icons. There’s no purpose why that info should be shown twice to the user.
2.) Disregard the words “your video” “your audio” etc in the notification. That info is already highlighted to the user from the post/video icons on the far right.
3.) Remove the like/reblog icons from the user’s avatar so we can see their full picture.
4.) Make the font slightly brighter so it contrasts better with the dark background.
Aside from visually looking better, this would be so much easier to read, understand, and click on links. The like/reblog icons would even separate the username from the blog post title so that it wasn’t just a long string of jumbled text. This solves everything.