feature: slide/master background fill

[jhludwig]

Request: add ability to a) examine and b) change some elements of a theme -- notably the background color.

My method for doing this in Powerpoint 2013 on Windows is to:
View...Slide Master
Slide Master....Background...Colors to pick a presentation-wide theme
Slide Master....Background Styles to shift entire deck to dark or light backgrounds

[apiszcz]

Note: You can change the properties of pptx\tempaltes\default.pptx for background color, default font, etc. All new Presentation() calls use the default styles.

[scanny]

It's probably easier just to call a custom template file in the Presentation() call, that way you can choose different defaults for different projects and avoid having to patch the installation each time.

Presentation() takes a filename as a parameter and opens that file the same way it opens default.pptx when provided. If you look at the code you'll see that all Presentation() does is check to see if a file path was provided, and if not it substitutes the default.pptx.

[apiszcz]

Tried the full path
Presentation(pkg_file=os.path.abspath(r'cfg\pptx\darktheme.pptx'))
no error, but not finding theme, will try file object

[scanny]

Slide.background and SlideMaster.background were added in release 0.6.9 on Wed May 9, 2018.