Integrate with PowerPoint

[Pixton Comic Characters](https://appsource.microsoft.com/en-us/product/office/WA104380907) is a PowerPoint add-in that lets you insert comic characters constructed using layers -- very similar to Comicgen. This approach would work fine.

We can create [PowerPoint task pane add-ins](https://docs.microsoft.com/en-us/office/dev/add-ins/quickstarts/powerpoint-quickstart?tabs=yeomangenerator) using JS.