Facets : how to select multiple value with one checkbox?

With Facets module/search API, I have a checkbox filter where I need to merge some value.

Exemple: vocabulary = color term = light red term = dark red term = light blue term = dark blue

In this case i have 4 checkbox.

My checkbox should look like this

vocabulary = color term = red term = blue

And When i tick Red it list all content tagged with dark red and light red And When i tick blue it list all content tagged with dark blue and light blue

thus the parent term will not be a used value in the filtered content, but only the child value will filter the content.

Is it possible to do that with taxonomy hierachy option in the facets?

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Facets : how to select multiple value with one checkbox?

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