The style of confirmation box for "single delete" has changed on some BO pages in 1.7.6.6, such as "Attributes" or "Features" listings.
We should, as much as possible, keep the style of the window used before. This change, by the way, broke some e2e tests.
Screenshots

Updated by @marionf
This behavior is expected, we need to update the tests
Thanks for opening this issue! We will help you to keep its state consistent
ping @boubkerbribri @Robin-Fischer-PS
This bug was reported by QA during 1.7.6.6 build and was considered not blocking for release.
@matks as it's a regression, we should fix it for the 1.7.7
@Robin-Fischer-PS @boubkerbribri Are there other pages in addition to Attributes & Features ?
@matks as it's a regression, we should fix it for the 1.7.7
@Robin-Fischer-PS @boubkerbribri Are there other pages in addition to Attributes & Features ?
Any listing still being rendered by legacy (= not symfony) code, that has a "single delete" action.
@PrestaShop/qa-automation We need to update the tests
This new modal is expected to fix an XSS
@marionf I will fix the tests.
Please ping me if confirmation Box style of legacy page change (because this one is the different from the one on symfony pages).
Thanks
Tests were fixed as part of #19997