This is a example of the folder and theme's structure for "Howling Theme Tool". Fill with your own Custom, NSFW and Official themes.

A theme for a proper work with Howling Theme Tool must have this structure:
bgm.bcstm (theme's audio)
bgm.ogg (audio's preview)
body_LZ.bin (*required*) (theme's background)
icon.png (*required*) (theme's icon)
name.txt (*required*) (theme's name) (it MUST be UTF-8 for “non-english” chars support)
preview.png (theme's preview)

Even if "icon.bmp" it's no longer required, "icon.png" it's still required and every theme must have one.
The "icon.bmp" will be automatically generated based on "icon.png" while creating a theme package.
To be sure your themes are ready to be used with "Howling Theme Tool", please run the "Theme Checker" and check your theme's folder.
"Theme Checker" will also generate proper "icon.png" and "name.txt" based in "info.smdh" and the folder's name.

All the themes included in this package was created by us, Howling Wolf & Chelsea.