I made a tweaked version of the Solarized Light
.tmTheme and posted it to GitHub. You can think of it as Solarized Light, with a tasteful sprinkling of italics and a few enhancements when editing Markdown.
I always come back to using Solarized Light in my editor. When I use a darker theme, it’s usually Cobalt2 by Wes Bos. I really like how Wes uses italics in his theme and I wanted the same kind of thing in Solarized Light. This is my attempt at it. It’s working for me. Perhaps you’ll like it, too. Give it a shot.