Possible Clues:

• Church adornment, perhaps
• Pleasing to see in a church but not in a pub!
• Dirty window pane often found in church
• Feature of many cathedral windows
• Descriptive of a church window
• Windows feature has organised agendas and lists
• Church window filler
• Spotted girl going round grand cathedral's colourful display?
• Colorful cathedral component
• Gladness -- it's a fantastic feature in many churches