Homebrew 3ds_homemenu_extdatatool aka Custom Themes on Ninjhax/Gateway

[TidusWulf]

So if this just reads/writes SD card data, what can this do that a computer with a SD card reader can't?

I don't mean to sound rude, I just don't know why this is a homebrew and not a computer program.

EDIT: And now I understand. Thanks

 

[GolyBidoof]

It doesn't, it injects data from SD card to Home Menu app

I made music to work by renaming a music track from MK7 RomFS and putting it in the app's folder. It's far from being custom, but it works!

 

[Psi-hate]

What are the dimensions for the screens? I want to try making my own.

 

[Gamnaught]

I made a Custom Zelda Theme for fun if anyone wants to try it out. Just rename body_LZ.jpg to body_LZ.bin.

 

[GolyBidoof]

What are the dimensions for the screens? I want to try making my own.

400x240 for the top, 320x240 times three for the bottom and a few others, smaller. Download the tool, you'll see.

 

[DarkFlare69]

So this loads stuff up every time we start our 3DS?
Can a modified version of this be used to pirate games downloaded from the eShop? They are saved on the SD card and read every time the 3DS is started...

 

[TidusWulf]

ok. trying to understand what I'm doing here...

I'm guessing I would use https://gbatemp.net/threads/release-theme-customization-tools.374206/ to actually make edits, and this tool to move the edited theme back onto the 3DS?

I hate to be "that guy" but how to I move the data back and forth? I booted up the tool and there's 5 options and I don't want to screw a theme up so bad I can't get to the home menu.

 

[Kelkador]

Ignore this I'm an idiot

 

[ludyan]

Well, I've tried running the compiled .cia on 9.4 emunand, no effects at all. Something to do with the path where body_LZ is, I guess?

 

[TidusWulf]

I've tried to run the "copy savedata.dat" and I got a file. not sure what to do with it. I also ran "copy theme cache" and got a ThemeManage.bin. I havne't got any other files.

Currently I only run a default Blue theme, and I can't download any, not even the free one, because I'm on 9.2.0

 

[GolyBidoof]

ok. trying to understand what I'm doing here...

I'm guessing I would use https://gbatemp.net/threads/release-theme-customization-tools.374206/ to actually make edits, and this tool to move the edited theme back onto the 3DS?

I hate to be "that guy" but how to I move the data back and forth? I booted up the tool and there's 5 options and I don't want to screw a theme up so bad I can't get to the home menu.

You can't screw your 3DS so you can't access Home Menu. Just place an edited body_LZ.bin in the same folder as this Homebrew App with this name, case sensitive.

Well, I've tried running the compiled .cia on 9.4 emunand, no effects at all. Something to do with the path where body_LZ is, I guess?

Maybe root? Maybe Nintendo 3DS/Gibberishnumbersandletters/something/here?

I've tried to run the "copy savedata.dat" and I got a file. not sure what to do with it. I also ran "copy theme cache" and got a ThemeManage.bin. I havne't got any other files.

Currently I only run a default Blue theme, and I can't download any, not even the free one, because I'm on 9.2.0

Savedata.dat seems to be only the backup file as you don't restore it in the process.
Copy Theme Cache will give you 3 files only if you already have a non-default theme set up and this will be only a dump. You don't need it. If you want to have a custom theme, just copy edited body_LZ.bin to this app's folder and import from SD to ExtData.

Thanks to Team Fail I found out how to make theme music work, go to Brawlcustommusic and convert any of the tracks that are 40 seconds or less to BCSTM, there is an option there. 40 seconds, because after that BCSTM will be bigger than 2MB and won't be imported. I tried a few tracks already and it works, just rename the file to bgm.bcstm and place it in the same folder as the app, then import it

 

[Xeonhawk]

I had the Kingdom Hearts theme working but it dissapeared after I turned the system off and on again.

 

[ludyan]

Maybe root? Maybe Nintendo 3DS/Gibberishnumbersandletters/something/here?

When I tried to change my theme I had already left one file on the root and one on the ninjhax app, neither of them worked. Don't wanna mess too much with this, something may go wrong and I may panic, lel.

Edit: Didn't get it to work by putting the file on the Nintendo 3DS/numbersandletters/morenumbers/here too. Oh well, I'll just wait for someone with more knowledge than me to figure out what to do, heh

 

[Xeonhawk]

How do I import BMPs? It won't let me.

 

[Inexplicit]

I had the Kingdom Hearts theme working but it dissapeared after I turned the system off and on again.

You need to copy the bgm.bcstm to the same directory as the body_LZ.bin. That should keep the theme on.

 

[Deleted member 313057]

If anyone of you is having trouble making your own theme, here's how.

1. Download the tool here (https://gbatemp.net/threads/release-theme-customization-tools.374206/)
2. Create a new BLANK BMP image with the dimensions 512 x 256 pixels for the top screen.
3. At the coordinates (0, 0) of that new image, insert the picture you want with the dimensions of 412 x 240. This will be the top screen.
4. Create a new BLANK BMP image with the dimensions 1024 x 256 pixels for the bottom screen.
5. Starting at coordinates (0, 0) of that new image, insert the three different images you want to transition on the bottom screen.
6. These three images should be each 320 x 240 pixels, and at coordinates (0, 0), (320, 0), and (640, 0) respectively.
7. Remember that these images will not fill up all of the whitespace within the container BMP images. This is supposed to happen.
8. In the 3DS Theme Editor that you downloaded in step one, import the default theme by pressing File>Open and navigating to data/body_BZ.bin.
9. For slide 0, press File>Import and select the BMP Image you need for the top screen.
10. For slide 1, press File>Import and select the BMP Image you need for the bottom screen.
11. Once you're done importing, press simulator to do a test-run of your theme thus far.
12. If you're happy with your results, press File>Save to save your body_BZ.bin file.

 

[Xeonhawk]

You need to copy the bgm.bcstm to the same directory as the body_LZ.bin. That should keep the theme on.

It doesn't stay. It's only there during the reboot after setting it up, after rebooting it again its gone.

 

[Inexplicit]

It doesn't stay. It's only there during the reboot after setting it up, after rebooting it again its gone.

Set it up like normal, power down the system, take out the sd card, and place the bgm.bcstm file (the one that came with the theme tools) in sd:/3ds/3ds_homemenu_extdatatool. This is exactly what I did and it worked.

 

[Inexplicit]

Sorry, double post.

 

[TidusWulf]

If anyone of you is having trouble making your own theme, here's how.

1. Download the tool here (https://gbatemp.net/threads/release-theme-customization-tools.374206/)
2. Create a new BLANK BMP image with the dimensions 512 x 256 pixels for the top screen.
3. At the coordinates (0, 0) of that new image, insert the picture you want with the dimensions of 400 x 240. This will be the top screen.
4. Create a new BLANK BMP image with the dimensions 1024 x 256 pixels for the bottom screen.
5. Starting at coordinates (0, 0) of that new image, insert the three different images you want to transition on the bottom screen.
6. These three images should be each 320 x 240 pixels, and at coordinates (0, 0), (320, 0), and (640, 0) respectively.
7. Remember that these images will not fill up all of the whitespace within the container BMP images. This is supposed to happen.
8. In the 3DS Theme Editor that you downloaded in step one, import the default theme by pressing File>Open and navigating to data/body_BZ.bin.
9. For slide 0, press File>Import and select the BMP Image you need for the top screen.
10. For slide 1, press File>Import and select the BMP Image you need for the bottom screen.
11. Once you're done importing, press simulator to do a test-run of your theme thus far.
12. If you're happy with your results, press File>Save to save your body_BZ.bin file.

Alright, I've pretty much got it down, but I'm wondering what the additional screens are past 0 and 1.