Bug Description

Images that have partial transparency return false for has-transparency

Steps to reproduce

1. Upload a partially transparent image, such as this one
2. View the source code on the front end
3. Observer data-transparency="false" is added to the image

Screenshots

Additional Context

• PHP Version: 8.2.18
• OS: All
• Browser: All
• Plugin Version: Performance Lab 3.0.0, Image Placeholders v1.1.0
• Device: All