Layered navigation module - feature texture

[Jurist]

Greetings,

 

I would like to ask if there is any possibility to filter category by feature that has assigned texture? I know and use this for attributes, and this works great on products page. 

 

For Layered navigation filters style there are only checkbox, radio button or drop down list visible. I am using 100% checkboxes for now, so I can afford changing this one for radio button. Is there any simpler way to assign an image to feature other than hardlink it in css child?

 

I would make a use for multiple texture-type features like this, but if it requires complete module re-write then I just want this one feature to be filtered out by texture. There's nothing wrong in having checkbox near it.

 

Particulary I want to add texture to the Cover design feature here: https://wetroomsdesign.co.uk/23-line

 

I will appreciate any answer,

 

Kindest regards