Home Menu/Themes

This page describes the formats/structure of the data stored in RomFS for Home Menu DLC, for themes.

Control Content

The control content has content-index 0. It's unknown what if any of this is Home Menu specific.

RomFS structure:

• "MetaDataContentHeader.bin": Unknown, size is 0x44-bytes.
• "ContentInfoArchive_<region>_<lang>.bin" Contains the list of all DLC content available under this DLC title(which can include DLC that's not yet accessible via the shop). <region> can be "USA", etc. <lang>, for the US title: "en", "es", "fr", and "pt".
• "icons/<decimal_id>.icn" Contains the raw DLC icon image data, without any header.

ContentInfoArchive entry format, size 0xC8(this file contains the following entry for each of the DLC content):

Relative offset	Size	Description
0x0	0x4	Content index - 1
0x4	0x4	0x0 = disabled, 0x1 = enabled.
0x8	0x40	char string for the title text.
0x48	0x88	char string for the description text.

The first entry is a "header": contentindex val=1, second word = <total DLC content excluding DLC control content>. The two strings are set to dummy text.

Theme Content

RomFS structure:

• "bgm.bcstm": Background music, see here.
• "body_LZ.bin": LZ11 compressed blob containing the rest of the theme data(graphics + optional CWAVs).

body_LZ.bin structure

Offset	Size	Description
0x0	0x4	Version (Must be 1?)
0x4	0x4	?
0x8	0x4	?
0xC	0x4	Must be less than 4?
0x10	0x4	Top Screen Frame Count (If 0 then solid color at 0x14, else texture at 0x18)
0x14	0x4	Top Screen Solid Color (RGB8)
0x18	0x4	Top Screen Texture Address (Rgb565 at (320*(Top Screen Frame Count))*240)
0x1C	0x4	?
0x20	0x4	Bottom Screen Frame Count
0x24	0x4	Bottom Screen Type (0=SolidColor, 2=Rgb565)
0x28	0x4	Bottom Screen Solid Color/Texture Address (Rgb565 at 320x240)

Built-in themes

The built-in themes are stored at Home Menu RomFS:/theme/<Color>_LZ.bin, the format appears to be the same as body_LZ.bin in the theme DLC content.