Attune

What’s the actual error you’re getting when entering the customize page? Your theme is fairly simple so it shouldn’t be hard to fix.

The error message is that the theme seems to be invalid and Tumblr will proceed to...

haha awww. You and your tags are absolutely adorable! Yes, I know a few things about html/css so I should be able to help you out. Send me a message with your your code and what changes you want to make to your theme. I'll see what I can do to help you out. :) 

What's the actual error you're getting when entering the customize page? Your theme is fairly simple so it shouldn't be hard to fix. 

The middle schooler inside of me went crazy when seeing this. Jinhyun you grew up well!