Hey! First time post, and it's a feature request. I am such a d**k.
Anyways; thumbnails! I'd like Gravit Designer to generate thumbnails. I don't know how this would be implemented, or that it would be easy, seeing as you'd probably want it to work cross-platform. Probably as a part of the saving process, though it may take more time to save which is a pain on large and detailed projects. So maybe a checkbox to skip thumbnail generation?
An example of why it's necessary is because I work in revisions. After a little while I have over a dousin project files, and depending upon the scope of the project I can end up with hundreds of files, with no way to differentiate them. I don't qualify the colours or theme in the filename, since I like to keep my filesystem structure clean - so I name them rev001, rev002, etc. It's incredibly hard to differentiate between revisions without a thumbnail, so I'm forced to save one of the pages (as I create graphic packages in the form of pages in Gravit Designer) to a jpg with the same name next to the project file - and again: I separate file types in subfolders. Maybe I'm just anal, but for me thumbnails is a must.