Invert colors

[erikn69]

I'm testing receipt-with-qrcode.bin, but I don't know if this is a BUG, ​​or this file has problems with the image

Before

After

[gilbertfl]

That's weird, that image is transparent so the background should not be black.

Before merging I will investigate to make sure it's not a rendering bug.

[erikn69]

I've tried this with all my images and it works for me. Is this a bug that's always been there, or is it something in my environment?

that image is transparent so the background should not be black.

It's in negative, not with a black background.

[gilbertfl]

I did a quick test and it shows black-on-white in Firefox, Chrome and Edge in Windows 11.

I have no idea what is different in your setup, but the problem seems to be in rendering the HTML, not in creating it from ESC/POS source.

[erikn69]

the problem seems to be in rendering the HTML, not in creating it from ESC/POS source.

• Yes, but I don't think it has anything to do with the browsers. I've tried it on Windows 10 and Ubuntu and it works fine with this change
• I noticed this problem when making the GD version of this GD fallback when no Imagick ext #13

What's the result you get, negative or normal version?

Did you try with receipt-with-qrcode.bin or with other images? Because it's specific to SelectBitImageModeCmd.php?