Changing page (not section!) sidebar in Hugo Apero theme

[G_Kan]

I am trying to add title / text in general to the sidebar of this page: Show your work! | GeorgeKan but I cannot get it to work. I set the title in the index.md file in the folder but that did not work. Also made sure to remove the title configuration from the _index.md file in the folder above but again did not help. Why is the title from the index.md sidebar not shown?
The theme I am using is Hugo Apero: GitHub - hugo-apero/hugo-apero: Apéro is a Hugo theme for personal websites. A Hugo theme you'll want to hang out with . This is the source for the theme files to install.
I am new to this but I have searched and tried different configurations to change this (unfortunately with nothing to show for it) Any help or hint would be great.

[jmooring]

@G_Kan

Why is the title from the index.md sidebar not shown?

The page in question is rendered by:
themes/hugo-apero/layouts/project/single-sidebar.html

which calls:

{{ partial "shared/sidebar-scaffold.html" . }}

which calls:

{{ partial "shared/sidebar/sidebar-header.html" $section }}

which contains:

<!--section level-->
{{ with .Params.sidebar }}
  {{ with .title }}<h1 class="f3">{{ . | markdownify }}</h1>{{ end }}
  {{ with .description }}<p class="f6 lh-copy measure">{{ . | markdownify }}</p>{{ end }}
  {{ with .author }}<p class="f7 measure lh-copy i mh0-l">Written by {{ . | markdownify }}</p>{{ end }}
{{ end }}

Notice that the context passed to sidebar-header is the current page’s section, not the current page itself.

That means that sidebar.title, sidebar.description and sidebar.author defined in content/books/show_your_work/index.md are never read (ignored).

[G_Kan]

Thank you very much that is very helpful! (Ok I did not manage to go this far on my own )
In order for me to change this configuration, would I need to add a page level configuration in the same file?

[jmooring]

If it were me, I would reach out to the theme author for guidance.

However, if you want to experiment:

mkdir -p layouts/partials/shared/
cp themes/hugo-apero/layouts/partials/shared/sidebar-scaffold.html layouts/partials/shared/

and change layouts/partials/shared/sidebar-scaffold.html from:

{{ partial "shared/sidebar/sidebar-header.html" $section }}

to:

{{ partial "shared/sidebar/sidebar-header.html" $page }}

But I don’t know what this would break…

[G_Kan]

Well naturally I went and did your recommendation For the time being nothing has broken and I managed to put the text I wanted in there. Thank you very much for the help!