We need to add files other than images to gallery (like product specs, sheets, docs, zips). MG greatly simplifies upload for users. There is no way to tell MG not to generate thumbnails for such files (which obviously fails and breaks output).
MODX Media sources have two settings: “allowedFileTypes” and “imageExtensions”. Only for latter MODX will try to create thumbnail, not for every file type. MG can read only “imageExtensions” setting from Media Source (or use own setting allowed_extensions), but tries to create thumbs for all files.
Is there a chance to add similar setting to MG, to tell which extensions to render and which do not? Not rendered file types can have only some kind of icon (similar to MODX). On front-end there can be specific placeholders for such files.
MoreGallery isn’t intended to support non-image/video file types. We’ve added support for PDFs, but docs/zips/etc aren’t supposed to be accepted in the first place.