いろんなフォントで「extension」変換
Zen Old Minchoextension
Yusei Magicextension
M PLUS 1extension
Shippori Antiqueextension
Yuji Maiextension
Dela Gothic Oneextension
DotGothic16extension
Train Oneextension
Hira Minchoextension
Potta Oneextension
Reggae Oneextension
Stickextension
Zen Kurenaidoextension
Kosugi Maruextension
Rampart Oneextension
Hachi Maru Popextension
New Tegominextension
RocknRoll Oneextension
Kaisei Decolextension
「extension」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
