https://addons.opera.com/en-gb/extensions/details/blendup/
Blendup extension - Opera add-ons
A tool for web developers to preview blend modes on different page elements.
extensionoperaaddons
https://forums.opera.com/topic/71512/blendup/3?lang=en-US
Blendup | Opera forums
operaforums
https://addons.opera.com/gd/extensions/details/blendup/
Leudachain Blendup - Tuilleadain Opera
A tool for web developers to preview blend modes on different page elements.
opera
https://www.blendup.pt/
BlendUp – Marketing Digital
marketingdigital