いろんなフォントで「system_command」変換
Zen Old Minchosystem_command
Yusei Magicsystem_command
M PLUS 1system_command
Shippori Antiquesystem_command
Yuji Maisystem_command
Dela Gothic Onesystem_command
DotGothic16system_command
Train Onesystem_command
Hira Minchosystem_command
Potta Onesystem_command
Reggae Onesystem_command
Sticksystem_command
Zen Kurenaidosystem_command
Kosugi Marusystem_command
Rampart Onesystem_command
Hachi Maru Popsystem_command
New Tegominsystem_command
RocknRoll Onesystem_command
Kaisei Decolsystem_command
「system_command」をコピペできる装飾文字に変換（旧字体・丸囲みなど）
