No screenshot (screen look) in Windowblinds
Windowblinds app shows blanks for some WB files
Recently, I downloaded some 'older' (haven't been updated in a while) WB files for use on my machine. Once these files were installed there was no 'screenshot' of the WB file shown on the screen of the WindowBlinds application. Rebuilding the file list did not change this outcome either. The files still loaded correctly, but in the listing now there is just a blank square that only shows the name when hovered, but no 'screenshot' (see below).

These files are single .wba files whereas other WB downloads have been large zip files containing a myriad of files and do display this screenshot of the screen look when installed.
So I guess my question(s) relating to this are, is there a difference between a single .wba file and these other WB zIp file downloads, other than the number of files they contain, and is a .wba similar to a compressed file, or is it simply a standalone creation? I'd like to know, thanks.
