Hello @unknow122 ,
First I think It's better to use a "Vertical Gallery" to display your list from SharePoint.
In this gallery, you will have to create a template with the control you want and the color etc...
Then With the gallery control, you have a parameter "OnSelect". In this parameter, you can Navigate to another screen and pass in parameter the Item selected in the gallery :
Navigate(Full_def_screen, CoverRight, {Selected_Item: Gallery.Selected})
In the next screen you will have the variable "Selected_Item" and you can bind It on different control you have on your screen.
For example a control for the name of the Item, you will put in the "Text" parameter : Selected_Item.Title.
Tell me If you need more help 🙂
Henri