transparent image shows defaut no image overlap

[Wei Hong]

Hi Flynax,

In version 4.8.1, I notice that if user uploaded an image with transparent background. You will see both the image and the default no-picture.png overlap each other in listing list or featured list on homepage. Please see screenshots taken from flynax demo site:

1.png

2.png

In listing detail page, it shows OK.

3.png

How do I fix this so the default no-picture.png won't show under the transparent png image?