When I rename a file in a folder of the Browser AND I remove it's extension
1. There is No change in the filetype icon when I rename a file by removing it's extension. Take a look at this explorer/XnMP browser comparison just after the same rename:

So the Browser should, naturally, acquire the same filetype icon as in Explorer. Please fix.
2. Same thing, if I extension rename a .jpg file to new extension of .zip then the filtype icon would not change to the zip filetype icon of Explorer, but would instead just remain the same filetype icon. please fix