The background of a list of harmful constituents must cover,—
(a) In the case of a cigarette pack that is not a flip-top pack, a carton, or a pack of a kind described in item 8 or item 9 of Schedule 2, the whole of the side the message is displayed on:
(b) In the case of a flip-top pack, the whole of the side the message is displayed on except for the part that is part of the top:
(c) In the case of a carton, at least one quarter of the side the message is displayed on:
(d) In the case of a pack of a kind described in item 8 or item 9 of Schedule 2, at least 9% of the total surface area of the pack.