I suggest maybe a color change theme? The current colors are nice, but can be a little too bright especially when in a dark room. Maybe some shades of brown to make it more soft:
To replace the white color:
To replace the cobalt blue color:
To replace the icy blue color:
And for some writing, or a small accent to the sight, maybe a blue color to go with the brown color scheme
Just what I think, you can of course change the shades, use completely different colors, or just keep the shade of blue ^^