How do I upload a picture on the wiki?

In the Toolbox at the bottom of the panel on the left is a link that says Upload file.

Browse for the Source filename on your computer. PNG format images are preferred, but you can use JPG or GIF too.

Destination filename and Summary are both optional.

Then click upload.

Using the picture

To embed the picture you just uploaded into a wiki article, write [[Image:Name of the Image.ext]] so for example, if you uploaded a file named "Hero Battle Quest screenshot.jpg" you would put that screenshot into an article by writing [[Image:Hero Battle Quest screenshot.jpg]]

Which pictures are appropriate?

The Wiki should host screenshots, diagrams, icons, and illustrations for OHRRPGCE wiki articles. If you want to upload some other type of image for some other purpose, please ask first.