A flag is used to display meta-informations about a product or a service. It must be displayed at the top of the content, and used as an indicator of a content main category.
Please use a tag if you need to display additional information.
There is different usages, depending on a color scheme.
For display meta-informations on Leroy Merlin related content. It's used to indicate which products or services are exclusive to Leroy Merlin.
Used to indicate when a product is new.
Used for sales content, to display meta-informations about a discount on a article or a product page.
The styles are useful to create hierarchy, depending on your need and the constrast of the background.