いろんなフォントで「flatten_out」変換
Zen Old Minchoflatten_out
Yusei Magicflatten_out
M PLUS 1flatten_out
Shippori Antiqueflatten_out
Yuji Maiflatten_out
Dela Gothic Oneflatten_out
DotGothic16flatten_out
Train Oneflatten_out
Hira Minchoflatten_out
Potta Oneflatten_out
Reggae Oneflatten_out
Stickflatten_out
Zen Kurenaidoflatten_out
Kosugi Maruflatten_out
Rampart Oneflatten_out
Hachi Maru Popflatten_out
New Tegominflatten_out
RocknRoll Oneflatten_out
Kaisei Decolflatten_out
「flatten_out」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
