bug#45068: [PATCH] 28.0.50; Update Modus themes 1.0.2 (backward-incompatible)

[Protesilaos Stavrou]

On 2021-03-01, 16:38 +0200, Eli Zaretskii <eliz@gnu.org> wrote:

>> From: Mauro Aranda <maurooaranda@gmail.com>
>> Cc: Eli Zaretskii <eliz@gnu.org>,  45068@debbugs.gnu.org
>> Date: Sun, 28 Feb 2021 10:33:14 -0300
>> 
>> The rest looks good to me, but let's wait for the other people involved
>> to give their feedback.
>
> It LGTM as well, thanks.

Thank you!  Just to add that Basil (now in cc) shared some more
insights.  The current version is this (any mistakes are mine):

    (defun require-theme (theme &optional path)
      "Load THEME stored in `custom-theme-load-path'.

    THEME is a symbol that corresponds to the file name without its file
    type extension.  That is assumed to be either '.el' or '.elc'.

    When THEME is an element of `custom-available-themes', load it and ask
    for confirmation if it is not considered safe by `custom-safe-themes'.
    Otherwise load the file indicated by THEME, if present.  In the latter
    case, the file is intended to work as the basis of a theme declared
    with `deftheme'.

    If optional PATH is non-nil, it should be a list of directories
    to search for THEME in, instead of `custom-theme-load-path'.
    PATH should have the same form as `load-path' or `exec-path'."
      (cond
       ((memq theme (custom-available-themes))
        (load-theme theme))
       ((let* ((dirs (or path (custom-theme--load-path)))
               (file (unless (featurep theme)
                       (locate-file (symbol-name theme) dirs '(".el" ".elc")))))
          (when file
            (load-file file))))))

-- 
Protesilaos Stavrou
protesilaos.com