No matter what your preferred operating system or device is, you can develop and deploy for SharePoint whatever you want to use. Even for the deploy modern experience components for branding such as themes for the modern experience.
In my case, I work mostly on Mac occasionally on Windows, whatever serves its purpose best. Sometimes I write PowerShell Scripts to configure things on Office 365, but there is a new option other than PowerShell, but those configuration changes nowadays are even possible through classic bash scripts through the opportunities provided by the Office 365 CLI.
Enough said on the new possibility let’s look why it might make sense to have multiple different themes available.
Once a wise man cited a wiser woman with the following statement:
“My mom always said life was like a box of chocolates. You never know what you’re gonna get. – Forest Gump”.
This quote can be applied to SharePoint in Office 365 nowadays too. When you have a provisioned classic site or even a modern site, then you never know what primary colour you get as your default theme.
Not every one of our users works in marketing or is an expert in storytelling. Storytelling is a skill for the future, but like every skill, it doesn’t come overnight and requires training. I assume, like for many of my customers, have problems to find an appropriate image for the header.
On the other hand, to communicate what is happening around you is beneficial for the rest of the company too. Let me show you a use case why you use default images for events in communication sites first and how to solve this on this kind of site templates.
I guess I showed in some of my recent blog posts that it is possible to test themed web parts during development. This theme testing is currently not possible in the local workbench, but it is possible on the one available on Office 365. Let me show in this post how I did and do and in which problem might occur to your web parts too.