[elpa] externals/standard-themes updated (ce807c3b55 -> 9b29031e98)

[ELPA Syncer]

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

      from  ce807c3b55 Greatly expand the subset of coloured backgrounds
       new  f881f7fcb7 REVISE standard-themes-prompts
       new  f93a3de7a0 Fix ediff-fine-diff-Ancestor
       new  16a0f0eae2 Remove unused conditional hue from the palette
       new  9b29031e98 REVISE standard-themes-headings and related "date" faces


Summary of changes:
 standard-dark-theme.el  |  46 +++++--
 standard-light-theme.el |  46 +++++--
 standard-themes.el      | 319 ++++++++++++++++++++++++++----------------------
 3 files changed, 254 insertions(+), 157 deletions(-)