1.3.1 - batch convert - preview without file should not be just black

[user0]

XnView: MP 1.3.1 64bits
OS: Windows 64bit (22H2), display resolution 3840x2160, win scaling 150%

Batch convert
Preview's Before/After shall be either disabled or explicitly show null value, when there are no file(s)/action(s) selected.

[cday]

I don't see a problem here: I have my background set to a pleasant lighter colour (Settings tab > Preview background color) and display of only the background indicates clearly that no image is loaded...

[user0]

Yeah, this is more a suggestion rather than bug report.

I have my background set to a pleasant lighter colour

Thanks, I have not noticed that it can be changed

Updated suggestion:
1. Set default background color to white (#ffffff). So background blends with UI color and do not distract from image.
2. Disable preview if there are no file selected. Not a big deal, but I just see no reason to leave it enabled as there are no data to apply actions to. Even 'Add Mask' action does not show any result. Also it potentially can reduce amount of bugs caused by user pressing buttons that do nothing at the moment.