Impress guide: Master slide color themes

Open https://documentation.libreoffice.org/assets/Uploads/Documentation/en/IG7.6/IG76-ImpressGuide.pdf and go to page 58.

There is a section “Master slide color themes”. This feature was reworked in 24.2, but apparently the whole topic was just removed from the later guide editions. This is understandable as the rework was not documented in 24.2 release notes.

The feature is now found under Format - Theme… It can be accessed both in Normal and Master views (for now at least).

A couple of relevant commits:

commit ad873064b0135e4e00389cd38c7de688286c1fa1
Author: Tomaž Vajngerl tomaz.vajngerl@collabora.co.uk
Date: Sat Aug 12 04:03:57 2023 +0900

sd: add ThemeDialog to Impress/Draw, refactor ThemeColorChanger

Add "Theme" menu action, which starts the common ThemeDialog.
Add Impress/Draw specific ThemeColorChanger and remove the one in
svx, so that only the interface and common function remain.
Rename the svx ThemeColorChanger files to THemeColorChangerCommon.

commit f4ed90bcad83ea24644c1cbf077b369ae05f004e
Author: Tomaž Vajngerl tomaz.vajngerl@collabora.co.uk
Date: Tue Aug 22 08:14:10 2023 +0200

sd: remove theme tab page