This is the entry. The folder is also named texture.DDAY, and is the correct entry number.
[fltsim.5]
title=Extra 300S DDAY
sim=Extra300S DDAY
model=
panel=
sound=
texture=DDAY
kb_checklists=Extra300S_check
kb_reference=Extra300S_ref
atc_id_color=0xffff0000
atc_id=TB295
ui_manufacturer="Extra"
ui_type="300S"
ui_variation="DDAY"
ui_typerole="Single Engine Prop"
ui_createdby="Microsoft Corporation"
description="If airplanes were horses, the Extra 300S would be a champion thoroughbred. It is, in fact, designed to be a champion in Unlimited class aerobatic competitions. The 300S combines light weight, a 300-horsepower engine, and exquisite control harmony in an aircraft that has won several World Aerobatic Championships. The Extra 300S is the aircraft of choice for Patty Wagstaff, one of the world's top award-winning aerobatic pilots."