Hello ! Beginner here and first time posting 
Im making an Animatic/Storyboard in Blender and I used Color attribute instead of material when I painted in different colors (greasepencil) . But when I add my scenes in the video editor it only shows the material color 
In my normal worklayout the color attributes show up because Iām in the right viewport mode, but this does not translate when I add the specific sequence to the editor (hope I described the problem correctly, like I said Im a beginner)
I thought video editing is for image and video only so i do not understand how to add Blender objects there. What you describe is the solid mode viewport shader (you need the material preview). Can you post a screenshot of the UI?