Browser not showing transparent png files correctly [Mac - Solved]

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jpage4500
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Browser not showing transparent png files correctly [Mac - Solved]

Post by jpage4500 » Thu Sep 03, 2020 5:50 pm

Hi,

I can't figure this one out for the life of me. I have XnView on 2 Macbook's.. 1 of them works fine but the other doesn't. The issue is that I have lots of white icons in .png format with transparent backgrounds.

I'm expecting to see some background color behind the images so I can identify them - but all I get is a white block. The images display correctly in the viewer tab - so it's just the thumbnail view that's not working.

I have 'use alpha channel' option checked but that doesn't seem to do anything. I've also rebuilt the thumbnails many times so it's not that either.. and since I have another Macbook (running the same/latest version) which works fine on the same set of icons - it MUST be a setting. I just can't see if after going back and forth between them.

Any ideas? I'd really appreciate it.

Hopefully the screenshots will show this problem best

grid view:
Image

individual image (looks fine)
https://pasteboard.co/JpoX8Yg.png

settings:
https://pasteboard.co/JpoXpxG.png
Last edited by jpage4500 on Tue Sep 15, 2020 2:13 pm, edited 1 time in total.

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xnview
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Re: Browser not showing transparent png files correctly

Post by xnview » Mon Sep 07, 2020 8:51 am

could you post the thumbnail view on the mac where it works?
Pierre.

jpage4500
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Re: Browser not showing transparent png files correctly

Post by jpage4500 » Tue Sep 15, 2020 2:08 pm

Sorry, I guess I didn't have notifications turned on because I didn't know someone replied to this message.

Here's a picture from XNView on another Macbook. Same images and same version of XNView. This is what I'm trying to achieve:

Image

jpage4500
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Re: Browser not showing transparent png files correctly

Post by jpage4500 » Tue Sep 15, 2020 2:16 pm

Not sure if it helps, but here's an example .png file.. nothing special - just a white icon with transparent background.

Image

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xnview
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Re: Browser not showing transparent png files correctly

Post by xnview » Wed Sep 16, 2020 6:32 am

which compression do you use for thumbnails/catalog?
Pierre.

jpage4500
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Re: Browser not showing transparent png files correctly

Post by jpage4500 » Wed Sep 16, 2020 6:48 pm

Both computers have this set to "Lossless (ZIP)" - although I've also tried disabling the catalog and no difference

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xnview
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Re: Browser not showing transparent png files correctly

Post by xnview » Sat Sep 19, 2020 12:44 pm

settings>Thumbnail>Use alpha channel?
Pierre.

jpage4500
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Re: Browser not showing transparent png files correctly

Post by jpage4500 » Sat Sep 19, 2020 2:15 pm

That would be the obvious choice - I agree.. but, checked/unchecked - no difference. Including rebuilding thumbnails after each check

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Re: Browser not showing transparent png files correctly

Post by xnview » Wed Sep 30, 2020 11:57 am

jpage4500 wrote:
Sat Sep 19, 2020 2:15 pm
That would be the obvious choice - I agree.. but, checked/unchecked - no difference. Including rebuilding thumbnails after each check
i can't reproduce, could you send me your xnview.ini?
Pierre.

jpage4500
Posts: 7
Joined: Thu Sep 03, 2020 5:40 pm

Re: Browser not showing transparent png files correctly

Post by jpage4500 » Wed Sep 30, 2020 2:30 pm

>> could you send me your xnview.ini?

The last post gave me an idea.. I copied the /.config/xnview folder from the working mac to the one with the issue and that did it. I guess maybe this file was corrupted somehow..

anyway, looks like it's working now!

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