add screenshot for accents.
fix solarized warningmsg fg color
Merge pull request #278 from seletskiy/fix-solarized-warningmsg-fg

Fix fg color of warning msg section in solarized theme
revert back to cursormove. resolves #279.
oops. #279.
correct visual fg color for serene theme.
add monochrome theme.
guard against attempting to load invalid themes.