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→Textures
RomFS structure:
RomFS structure:
* "MetaDataContentHeader.bin": Unknown, size is 0x44-bytes.
* "MetaDataContentHeader.bin": Describes the number of themes and languages in the control content.
* "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".
* "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. 48x48 tiled RGB565.
* "icons/<decimal_id>.icn" Contains the raw DLC icon image data, without any header. 48x48 tiled RGB565.
The below structures are little-endian.
MetaDataContentHeader.bin format:
{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
| 0x0
| 0x0
| 0x4
| 0x4
| Content index - 1
| Version - always 0x1
|-
|-
| 0x4
| 0x4
| 0x4
| 0x4
| 0x0 = disabled, 0x1 = enabled.
| Number of enabled themes
|-
|-
| 0x8
| 0x8
| 0x4
| Total number of themes
|-
| 0xC
| 0x4
| Observed 0x300030
|-
| 0x10
| 0x4
| Magic, 0xDEADBEEF
|-
| 0x14..0x2C
| 0x2
| This data is sorted by region (JPN at 0x14, US at 0x18, etc.). This is the target region.
|-
| 0x16..0x2E
| 0x2
| Primary language for region? (0x0 for JPN, 0x1 for US and EU)
|-
| 0x30
| 0x4
| Number of ContentInfoArchive languages
|-
| 0x34+i
| 0x2
| ContentInfoArchive [[Nandrw/sys/SecureInfo_A|region]]
|-
| 0x36+i
| 0x2
| ContentInfoArchive [[Config_Savegame#Languages|language]]
|}
ContentInfoArchive header format, size 0x08:
{| class="wikitable" border="1"
|-
! Relative offset
! Size
! Description
|-
| 0x0
| 0x4
| Version? - always 0x1
|-
| 0x4
| 0x4
| Number of theme entries that follow.
|}
ContentInfoArchive theme entry format, size 0xC8 (the file contains the following entry for each of the DLC themes):
{| class="wikitable" border="1"
|-
! Relative offset
! Size
! Description
|-
| 0x0
| 0x40
| 0x40
| char string for the title text.
| char string for the title text.
|-
|-
| 0x48
| 0x40
| 0x88
| 0x80
| char string for the description text.
| char string for the description text.
|-
| 0xC0
| 0x4
| Content index
|-
| 0xC4
| 0x4
| 0x0 = disabled, 0x1 = enabled.
|}
|}
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.
The first entry is set to dummy text, "content index" of 0 (invalid), and disabled.
=Theme Content=
=Theme Content=
RomFS structure:
RomFS structure:
* "bgm.bcstm": Background music, see [[CSTRM|here]].
* "bgm.bcstm": Background music, see [[BCSTM|here]].
* "body_LZ.bin": LZ11 compressed blob containing the rest of the theme data(graphics + optional [[BCWAV|CWAVs]]).
* "body_LZ.bin": LZ11 compressed blob containing the rest of the theme data(graphics + optional [[BCWAV|CWAVs]]).
| 0x18
| 0x18
| 0x4
| 0x4
| Top screen texture offset, see below.
| Top screen texture offset, if draw-type has value 2 this offset points to texture5
|-
|-
| 0x1C
| 0x1C
| 0x4
| 0x4
| Additional top-screen texture offset, used with draw-type has value 2. This is optional when using draw-type val2.
| Additional top-screen texture offset, used with draw-type has value 2, this offset points to texture6. This is optional when using draw-type val2.
|-
|-
| 0x20
| 0x20
| 0x40
| 0x40
| 0x4
| 0x4
| Offset to the data for texture6.
| Offset to the data for texture7.
|-
|-
| 0x44
| 0x44
| 0x4
| 0x4
| Offset to the data for texture7.
| Offset to the data for texture8.
|-
|-
| 0x48
| 0x48
| 0x4C
| 0x4C
| 0x4
| 0x4
| Offset to a 0xD-byte block. Block contains three RGB888 colours that affect both the cart icon that appears for DSiWare, and the file graphic that appears in folders. In order: bottom shadow, main colour, highlight at the top (folder icon only). The remaining four bytes are of unknown purpose.
| Offset to a 0xD-byte block. Block contains three RGB888 colours that affect both the cart icon that appears for DSiWare, and the file graphic that appears in folders. In order: bottom shadow, main colour, highlight at the top (folder icon only). The remaining four bytes are of unknown purpose. This block may or may not also be responsible for coloring regular icons when a texture is not used.
|-
|-
| 0x50
| 0x50
| 0x54
| 0x54
| 0x4
| 0x4
| Offset to the data for texture8.
| Offset to the data for texture9.
|-
|-
| 0x58
| 0x58
| 0x4
| 0x4
| Offset to the data for texture9.
| Offset to the data for texture10.
|-
|-
| 0x5C
| 0x5C
| 0x70
| 0x70
| 0x4
| 0x4
| Offset to a 0x20-byte block. Related to the colour of the open button on the bottom screen.
| Offset to a 0x20-byte block. Block contains rgb data for the open button that appears when an app is under the cursoron the bottom screen. The 1st 4 bytes are unknown, the next 9 bytes contain colour data for(in order 3 bytes each) button background when pressed, unpressed and border. the next 7 bytes are unknown. The next 9 bytes contain the data for the text in thes order button text shadow, button text unpressed and then pressed. the last 3 bytes are unknown
|-
|-
| 0x74
| 0x74
| 0x4
| 0x4
| Offset to a 0x20-byte block. Block normally contains the same data as the previous field's block, and changing it does not appear to have any effect. (???)
| Offset to a 0x20-byte block. Block contains rgb data for the close button that appears when home button pressed from within a app. The 1st 4 bytes are unknown, the next 9 bytes contain colour data for(in order 3 bytes each) button background when pressed, unpressed and border. the next 7 bytes are unknown. The next 9 bytes contain the data for the text in thes order button text shadow, button text unpressed and then pressed. the last 3 bytes are unknown
|-
|-
| 0x78
| 0x78
| 0x7C
| 0x7C
| 0x4
| 0x4
| Offset to a 0xD-byte block.
| Offset to a 0xD-byte block that controls the text that appears above game icons when zoomed to the maximum level. First three bytes control background colour, next seven bytes are unknown, and the last three bytes control text colour.
|-
|-
| 0x80
| 0x80
| 0x8C
| 0x8C
| 0x4
| 0x4
| Offset to a 0x9-byte block, related to the bottom screen outer area. Used when the draw-type is set to solid colour. Block contains three RGB888 colours (bottom stripes, main background colour, very subtle border colour).
| Offset to a 0x9-byte block, related to the bottom screen outer area. Used when the draw-type is set to solid colour. Block contains three RGB888 colours (bottom stripes, main background colour, subtle edge glow).
|-
|-
| 0x90
| 0x90
| 0xA4
| 0xA4
| 0x4
| 0x4
| Offset to a 0x15-byte block. The block contains seven RGB888 colours that affect the bottom bottom screen icon-resize and settings buttons. In order: box shadow (subtle), background colour, border colour, unknown, button colour, pressed colour, unknown.
| Offset to a 0x15-byte block. The block contains seven RGB888 colours that affect the bottom bottom screen icon-resize and settings buttons. In order: left box shadow (subtle), background colour, border colour, icon gradient colour 1, icon gradient colour 2, pressed colour, right box shadow (subtle).
|-
|-
| 0xA8
| 0xA8
| 64x64
| 64x64
| 64x64
| 64x64
| This is used with the top-screen when top-screen draw-type is val2, see above. Used to tile the top screen in much the same way as the white squares that appear when no theme is selected.
| This is used with the top-screen when top-screen draw-type is val2, see above. Used to tile the top screen in much the same way as the white squares that appear when no theme is selected, this is the moving pattern, it is rotated 90 degrees.
|-
|-
| 6
| 6
| Tiled A8
| 64x64
| 64x64
| This is used with the top-screen when top-screen draw-type is val2, see above. Used to tile the top screen in much the same way as the white squares that appear when no theme is selected, this is the still pattern, it is rotated 90 degrees.
|-
| 7
| Tiled BGR888
| Tiled BGR888
| 74x64
| 74x64
| This is used for folder's on the main menu.
| This is used for folder's on the main menu.
|-
|-
| 7
| 8
| Tiled BGR888
| Tiled BGR888
| 82x64
| 82x64
| This is used for open folder's on the main menu.
| This is used for open folder's on the main menu.
|-
|-
| 8
| 9
| Tiled BGR888
| Tiled BGR888
| 36x72
| 36x72
| This is used for 48x48 icon borders on the main menu.
| This is used for 48x48 icon borders on the main menu.
|-
|-
| 9
| 10
| Tiled BGR888
| Tiled BGR888
| 25x50
| 25x50
| 0x0
| 0x0
| 0x4
| 0x4
| Unknown
| Unknown
|-
|-
| 0x4
| 0x4
| 0x8
| 0x8
|
|
| Beginning of the audio data entries.
| Beginning of the audio data entries.Each .cwav has an 8 byte "header" before the "Magic" (cwav) the first two bytes tell the 3ds where the next audio entry isand is the same as its cwav's filesize (See below). Bytes 3 + 4 are zeroes and byte 5 controls the cwav's volume (0-100) the last three bytes are zeroes again
|}
|}
* 5: When cursor is moved a screen-worth of icons across
* 5: When cursor is moved a screen-worth of icons across
* 6: Folder buttons
* 6: Folder buttons
=Built-in themes=
=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.
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.