Emacs: ef-themes version 1.10.0

The ef-themes are a collection of light and dark themes for GNU Emacs that provide colourful (“pretty”) yet legible options for users who want something with a bit more flair than the modus-themes (also designed by me).

Package name (GNU ELPA): ef-themes
Official manual: https://protesilaos.com/emacs/ef-themes
Change log: https://protesilaos.com/emacs/ef-themes-changelog
Sample pictures: https://protesilaos.com/emacs/ef-themes-pictures
Git repositories:
- GitHub: https://github.com/protesilaos/ef-themes
- GitLab: https://gitlab.com/protesilaos/ef-themes
Backronym: Eclectic Fashion in Themes Hides Exaggerated Markings, Embellishments, and Sparkles.

Below are the release notes.

Version 1.10.0 on 2025-04-29

This version introduces minor refinements to an already stable package.

The palette preview uses a tabulated interface

The commands ef-themes-preview-colors and ef-themes-preview-colors-current produce a preview of the given theme’s palette. In the past, we were using a bespoke buffer for this task, just how the built-in command list-colors-display does it.

Now we rely on the built-in tabulated-list-mode to get a cleaner tabulated view. Plus, users can sort by column.

Support for more faces or face groups

Added support for my tmr package. This will be especially noticeable in its tabulated view (used to show timers, with the command tmr-tabulated-view (alias tmr-list-timers)).
Added explicit support for my spacious-padding package. Specifically, this is for the faces spacious-padding-subtle-mode-line-active and spacious-padding-subtle-mode-line-inactive. Those can be configured as part of the user option spacious-padding-subtle-mode-line.
```
(setq spacious-padding-subtle-mode-line
      '( :mode-line-active spacious-padding-subtle-mode-line-active
         :mode-line-inactive spacious-padding-subtle-mode-line-inactive))
```
Made the helpful headings use whatever the style of level 1 headings is, as defined by the user option ef-themes-heading. Thanks to John Haman for applying the relevant code we have for the modus-themes. The change is small (and comes from my modus-themes, anyway), meaning that John does not need to assign copyright to the Free Software Foundation.
Added support for the howm package.
Extended support for the auto-dim-other-buffers package to include its auto-dim-other-buffers-hide-face.
Made sure that all new transient faces conform with the design priorities of the themes. Concretely, this means that they do not support any colour-coding: all keys look the same, regardless of whether they mean “continue”, “exit”, or anything else. Colour-coding with a full spectrum of colours cannot be accessible (and I do not believe colour-coding alone even works because the colours have nothing else to be associated with, like how a red line in a diff buffer also goes together with the minus sign).

Thanks to Kevin Fleming for including the transient-key-stack face that I had originally missed. This was done in pull request 54: https://github.com/protesilaos/ef-themes/pull/54. The change is small, meaning that Kevin does not need to assign copyright to the Free Software Foundation
Extended support for adoc-mode courtesy of Leilei332. This was done in pull request 52: https://github.com/protesilaos/ef-themes/pull/52.

The change is within the ~15-line limit, meaning that its author does not need to assign copyright to the Free Software Foundation.