To use custom images for the customization "General Settings, Sign in logo" or "General Settings, Sign in product symbol" perform the following:
1. Host the image on the Web Server, IT Shop directory that hosts the web.config file
2. Create a URL for each image. For example: "http://domain.com/IdentityManager/image.png"
3. Instead of selecting an image from resource when customizing the above, paste the URL into the "URL" field