Emily shows Rory the guest room she has had redecorated to be Rory’s bedroom any time she stays with her grandparents. Even though Rory said her favourite colour was probably blue, Emily has chosen pink for the accessories (with one blue blanket on a chair), and despite saying that she preferred NSYNC, there is a 98° boy band poster on the wall – there might be another poster on the wall we can’t see, though. From this you can see the very limited choices that Emily allows others to make, and that she is all too ready to override them.
Emily did take notice of the sunflowers, however, which Rory said were her favourite flower. Sunflowers are symbolic of platonic love between family members, and strong bonds between two people, reminiscent of Rory’s relationship with Lorelai. They are happy, positive flowers, and symbols of good luck, which make sense because Rory leads such a charmed life.
The room is obviously Emily’s way of showing how much better cared for Rory would have been had she and Lorelai remained living with Emily and Richard. She is still angry and distressed that Lorelai took Rory to live in a shed rather than with her parents, and believes that Lorelai must have hated them to have chosen a shed over her own home.