[elpa] externals/ef-themes updated (e3d72e155b -> e145251771)

[ELPA Syncer]

elpasync pushed a change to branch externals/ef-themes.

      from  e3d72e155b ef-melissa-dark: tweak 
bg-{red,green,yellow,blue,magenta,cyan}-bg
       new  38b759e85c Add the 'ef-arbutus' theme
       new  e145251771 ef-arbutus: tweak prompt and keybind mappings


Summary of changes:
 contrast-ratios.org                              |  65 +++++++
 ef-melissa-light-theme.el => ef-arbutus-theme.el | 214 ++++++++++++-----------
 ef-themes.el                                     |   3 +-
 3 files changed, 175 insertions(+), 107 deletions(-)
 copy ef-melissa-light-theme.el => ef-arbutus-theme.el (56%)