Photos, illustrations, paintings, artworks, icons etc.
Sometimes I include these visual elements into folder to download, sometimes I do not.
Simple logic says that in 99.99% of cases you will not need exactly same pictures to use in your website. If for example, my demo theme is decorated with retro cars photo backgrounds while your website is about football team or furniture showcase, I assume there is no sense in retro cars photo backgrounds, right?
Second thing is that in order to include photos, illustrations, paintings, artworks etc into downloadable folder I need to pay and obtain corresponding license to re-sell such images. If to follow simple logic (described above) you will throw away these images because you simply do not need them. Same simple logic says me that payment for such licenses is not justified.
When do I include photos, illustrations, paintings, artworks, icons etc into folder to download?
It happens when I do have legal permission to use copyrighted material in commercial purposes. It happens when such material is free for use in commercial projects.
Everything I create myself is always included into folder and I provide either jpg/png files or/and PSD files.