Luma3DS is a program (Custom Firmware) to patch the system software of (New) Nintendo 3DS handheld consoles “on the fly”, adding features (such as per-game language settings and debugging capabilities for developers) and removing restrictions enforced by Nintendo (such as the region lock). It also allows you to run unauthorized (“homebrew”) content by removing signature checks.
For details on setup, usage and features please visit the Wiki:
Developer Page: https://github.com/AuroraWright/Luma3DS
Changing the Bootup Logo or Animation:
Luma3DS supports custom boot logos on both the upper, and lower screens. It also supports animated logos, however using animations breaks the auto update feature, so you’ll have to manually update Luma3DS if you use this feature. Non-animated logos don’t require manual updates, and can be used safely with automatic updates enabled.
These can be downloaded using Themely. The files below must be placed in the Luma folder.
Secret Luma Menu Button Combo