v1.3 [Sep 26, 2020]
1. Subfolders are now better organized.
2. Images are now categorized by folder.
3. Now you could open folder and recent folders from File menu.
4. Minor Bugfixes.
a) Earlier when opening an image in finder, the image is not selected. Now the image is selected.
b) pdf files are not counted in earlier version. Now they can be counted.
5. Minor UI update.
a) Quickly check amount of images in one folder.
b) Show sequence number of each image.
c) Quickly check image resolution.
