I have an e-commerce website coded in codeigniter framework and 3 apps are linked with the same single backed apps are customer app, seller app, Delivery boy app these apps are coded in flutter, but website and backend is in codeigniter, I want to do some

I want to do some customisation work- 1)Zoom in/zoom out effect 2) currently at product detail, If I have variable product like Red and Black coloured and each having 4 images and one thumbnail then all the 9 images including thumbnail, showing to the customer when user select Red variant then also showing all the 9 images, it must be like amazon Flipkart when user select Red then show only red coloured images and others hide, when customer click on Black then show only black images and also must be change description according to selection currently it's not working