3DS Theme Editor usagirei
3ds-theme-editor background-images custom-themes n2ds n3ds new-nintendo-2ds-home-menu new-nintendo-3ds-home-menu newnintendo2dshomemenu newnintendo3dshomemenu nintendo-2ds-home-menu nintendo-3ds-home-menu nintendo2dshomemenu nintendo3dshomemenu system-themes
Use this command to install 3DS Theme Editor:
winget install --id=usagirei.3DSThemeEditor -e Custom creator for Nintendo 3DS Home Menu themes. Once created, they can optionally be copied over to a softmodded (or potentially emulated) 3DS/2DS.