The title pretty much says it all. Currently, if I try to make a texture that is larger than 256x256 a folder image, I get a message saying that it is too large. Then, I have to use a graphics editor to resize it, and then I have to upload the smaller one.
It would be better if the dialog box that pops up when an image is too large had a checkbox or radio buttons that would allow a choice between "Resize and use" and "Close without using." Of course, the pre-selected default should be "Resize and use."