White area in watermark displays as black

[nahall]

Preconditions and environment

Tested with Magento 2.4.3 and 2.4.6

Steps to reproduce

Create a watermark PNG that has a transparent background and a section that is white.

Below is a sample watermark file that I created. In this file I used a transparent background and created 2 "white" rectangles -- the upper left one is pure white, HTML #ffffff, but the lower right rectangle is slightly off-white, HTML #fefefe. To the eye both look white. NOTE that in the white background of github it looks like nothing is here, go over the whitespace below and you'll see the link to the watermark image.

Now go to Magento Config->Content->Design Configuration.
Edit Global and upload the watermark PNG image.
Set opacity to 50 and image size to 100x100, center.
Save the settings.

Now load a product page.

You'll see the product page with the watermark overlaid. The upper left corner rectangle that was pure white in the watermark file will actually display as black, not white, where as the slightly off-white rectangle will display as white, as expected.

Expected result

Both the pure white rectangle and the slightly off-white rectangle should appear white in the watermark.

Actual result

The pure white rectangle displays as it would if black were used in the watermark, instead of white.

Additional information

No response

Release note

No response

Triage and priority

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

[m2-assistant]

Hi @nahall. Thank you for your report.
To speed up processing of this issue, make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce. To deploy vanilla Magento instance on our environment, Add a comment to the issue:

• @magento give me 2.4-develop instance - upcoming 2.4.x release
• For more details, review the Magento Contributor Assistant documentation.
• Add a comment to assign the issue: @magento I am working on this
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[nahall]

@magento give me 2.4-develop instance

[magento-deployment-service]

Hi @nahall. Thank you for your request. I'm working on Magento instance for you.

[magento-deployment-service]

Hi @nahall, here is your Magento Instance: https://3831be7cc17474552c27cc81a7c2583f.instances-prod.magento-community.engineering
Admin access: https://3831be7cc17474552c27cc81a7c2583f.instances-prod.magento-community.engineering/admin_509a
Login: c5f1377b
Password: 78f8d42729d7

[nahall]

Confirmed that this still happens with the vanilla dev instance provided. See the below image from the dev instance, the black square on the watermark should appear white:

[m2-assistant]

Hi @engcom-Bravo. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: 👇

• 1. Verify that issue has all the required information. (Preconditions, Steps to reproduce, Expected result, Actual result).
• 2. Verify that issue has a meaningful description and provides enough information to reproduce the issue.
• 3. Add Area: XXXXX label to the ticket, indicating the functional areas it may be related to.
• 4. Verify that the issue is reproducible on 2.4-develop branch
  Details

  - Add the comment @magento give me 2.4-develop instance to deploy test instance on Magento infrastructure.
  - If the issue is reproducible on 2.4-develop branch, please, add the label Reproduced on 2.4.x.
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• 5. Add label Issue: Confirmed once verification is complete.
• 6. Make sure that automatic system confirms that report has been added to the backlog.

[engcom-Bravo]

@magento give me 2.4-develop instance

[magento-deployment-service]

Hi @engcom-Bravo. Thank you for your request. I'm working on Magento instance for you.

[magento-deployment-service]

Hi @engcom-Bravo, here is your Magento Instance: https://3831be7cc17474552c27cc81a7c2583f.instances-prod.magento-community.engineering
Admin access: https://3831be7cc17474552c27cc81a7c2583f.instances-prod.magento-community.engineering/admin_5959
Login: 2ef187c6
Password: c0df691c8fe0

[engcom-Bravo]

Hi @nahall,

Thank you for reporting and collaboration.

Verified the issue on Magento 2.4-develop instance and the issue is reproducible. Kindly refer the screenshots.

Steps to reproduce

• Create a watermark PNG that has a transparent background and a section that is white.
• Now go to Magento Config->Content->Design Configuration.
• Edit Global and upload the watermark PNG image.
• Set opacity to 50 and image size to 100x100, center.
• Save the settings.
• Now load a product page

The Pure rectangle displaying as a Black instead of white and other diaplaying as white.

Hence Confirming the issue.

Thanks.