Misty greens, a soft serif and a full-bleed forest backdrop. This is the theme that ships compiled into goblog as forest, published as a directory theme so it can be installed and updated on its own.
From your goblog: Admin → Themes → Browse → Forest → Install, then Activate. Requires goblog 0.5.0 or newer.
Only the public-facing templates (header, footer, home, post, posts, the page types, tag, search, projects, presentations, error, login, research) and static/css/goblog.css. Admin and wizard pages render from goblog's default theme, so they keep up with new goblog releases automatically.
Edit the files under templates/ and static/, drop the folder into a goblog checkout as themes/installed/forest/ (or point THEMES_INSTALLED_DIR at its parent) and set the theme setting to forest. Templates are Go html/template; see docs/THEME_CONTRACT.md for the contract.
Tag vX.Y.Z and publish a GitHub release; the directory picks up the tag's archive. screenshot.png at the root is shown in the listing.