[Do you include any games, firmware or BIOS?](https://github.com/XargonWan/RetroDECK/wiki/FAQs-Frequently-asked-questions#do-you-include-any-games-firmware-or-bios)<br>
[Where can I get them?](https://github.com/XargonWan/RetroDECK/wiki/FAQs-Frequently-asked-questions#can-you-at-least-point-me-towards-where-i-can-get-them)<br>
[What does ~ mean?](https://github.com/XargonWan/RetroDECK/wiki/FAQs-Frequently-asked-questions#i-see--refereed-in-documentation-and-examples-what-does-it-mean)
**NOTE:** On the Steam Deck this step needs to be done in Desktop Mode
## Information
Read up on [BIOS & Firmware](https://github.com/XargonWan/RetroDECK/wiki/BIOS-and-Firmware)
* The BIOS & Firmware files go into the `~/retrodeck/bios/` directory <br>
**Example:**<br>
You have a BIOS for the PSX called `exampleBIOSPSX.bin`, you just put that file into the `~/retrodeck/bios/` folder.
# Step 3: ROMs
**NOTE:** On the Steam Deck this step needs to be done in Desktop Mode
## On ROMs
Rom files needs to be put in their corresponding system directory inside the `roms` folder.<br>
Note that the `roms` folder location can be different depending on where you choose to put it during the installation process. The following options are available during the installation:
### **Choice: Internal**<br>
If during the installation of RetroDECK you choose the Internal option for the roms folder:<br>
The roms folder is:`~/retrodeck/roms/`
### **Choice: SDCard**<br>
If during the installation of RetroDECK you choose the SDCard option for the roms folder:<br>
The roms folder is: `<sdcard>/retrodeck/roms/`<br>
(Please note that the `<sdcard>` is an example and not called so inside your Linux/SteamOS system but rather your unique per SDCard ID number).<br>
Read up on [Emulators: Folders & File extensions](https://github.com/XargonWan/RetroDECK/wiki/Emulators-Folders-&-File-extensions) to see what folder each system has.
2. Read up on scraping on the [ES-DE Guide](https://github.com/XargonWan/RetroDECK/wiki/EmulationStation-DE-User-Guide#scraping-and-editing-roms-metadata-images-etc)
* [I got some weird error message about quota after scraping in a foreign language from screenscraper.fr](https://github.com/XargonWan/RetroDECK/wiki/FAQs-Frequently-asked-questions#i-got-some-weird-error-message-about-quota-after-scraping-in-a-foreign-language-from-screenscraperfr)
* [My system storage ran out after scraping!](https://github.com/XargonWan/RetroDECK/wiki/FAQs-Frequently-asked-questions#my-system-storage-ran-out-after-scraping)
RetroDECK comes with several themes built in for the ES-DE interface.
## How to switch between themes?
* On the Steam Deck: you can switch between them by pressing the `☰` button to open the menu and then navigate to `UI Settings > Theme Set` to select the theme you want to use.