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I've got a problem with php-gd, I use php-gd to resize png with transparent background file. after that, I put the resized png with <img> and set a background color #wheat on HTML file.

But the background color is not pure wheat, there is 'brushed metal' on background. enter image description here

I've tried to use another Server B to resize png file with same code, it works prefectly with transparent background: enter image description here

So I think this it's a environment issue, because I run same code on these servers.

Here is the environment info with 'brushed metal' background image:

OS: centos-release-7-7.1908.0.el7.centos.x86_64
PHP: 7.3.16
PHP-GD: 2.3.0

enter image description here

The environment info with work perfectly:

OS: centos-release-6-8.el6.centos.12.3.x86_64
PHP: 7.1.19
PHP-GD: 2.1.0

enter image description here Do you guys have any idea with that?

Thank you so much!

evenloooo
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