Ok thats icons done to death what about images ?
ViewingDale uses a custom image file format for a number of reasons but the main one is performance. The data is reformatted so that it can display them very fast. Its also adds some tags to the images not present in any of the file formats so that when the app is run it does not have to work these out each time. Anyway suffice it to say that you gotta get your image into VMI format. The app has a built in converter.
By pressing F2 you get the Icons and Images menu and on there is the Import Image option which gives a dialog like this:
You have to load in a color and a transparency image or you can load in a PNG file with both color and transparency. Either way, it will show the image seperated into its color on the left, transparency in the middle and combined on the right. You can import a BMP, JPG or PNG file. You can try a TIF file too and it might work. You can use any image from very small to very large tho if larger than 2048 square then it will resize it down. In fact it will usually resize the import anyway but its very generous and almost always upsamples it using a good algorithm so you don't notice. Anyway, once you have something correct on the right panel you can save that image. It asks you for a name and a directory to place it into. The directory will always be under the Images base directory. ViewingDale will not make icons out of images outside of its directory structure. Theres a good reason for that too... later.
So you should be able to save an image as a VMI file.
There is an app that ships with it which is the batch PNG file converter which will change over a whole directory and subdirectories of PNG files into VMI files. You still need to make icons for them all but at least half the work can be automated.
Thats about all there is to know about images.