With the recent SNES Classic Edition Hack news and Source Code / ROM Converter updates, today developer yyoossk made available an SNESMini (SNESClassic) Custom Wallpaper Module wall_hack.hmod and Pokemon Pikachu Special Edition Theme demonstration video below! 
Download: wall_hack.hmod.zip (80.27 KB) / sound_hack.hmod.zip (1.96 KB) / rollbackuisound_hack.hmod.zip (1.48 KB) / Windows XP theme.zip (24.12 MB) / SNES Classics Beta 2.zip (12.7 MB)
Those interested can check out @yyoossk's Blog Page, and to quote from yyoossk on the release: SNESMini Custom Wallpaper Module wall_hack.hmod
=== Wall Hack ===
This module allows to disable NES/SNES Mini's wallpaper or replace it with your own wallpaper.
Just replace "cwall.png" file if you want to set your own wallpaper in the menu of NES/SNES Mini. It must be in 512x184 PNG format.
Videos:
Spoiler
Also from yyoossk comes an SNESMini Custom SoundEffect Module with details below, to quote:
=== Sound Effect Hack ===
This module allows to disable NES/SNES Mini's sound effect or replace it with your own sound.
Just replace sound effect file if you want to hear your own sound effect in the menu of NES/SNES Mini. It must be in PCM format.
This module allows to disable NES/SNES Mini's sound effect or replace it with your own sound.
Just replace sound effect file if you want to hear your own sound effect in the rollback-uimenu of NES/SNES Mini.
Download: wall_hack.hmod.zip (80.27 KB) / sound_hack.hmod.zip (1.96 KB) / rollbackuisound_hack.hmod.zip (1.48 KB) / Windows XP theme.zip (24.12 MB) / SNES Classics Beta 2.zip (12.7 MB)
Those interested can check out @yyoossk's Blog Page, and to quote from yyoossk on the release: SNESMini Custom Wallpaper Module wall_hack.hmod
=== Wall Hack ===
This module allows to disable NES/SNES Mini's wallpaper or replace it with your own wallpaper.
Just replace "cwall.png" file if you want to set your own wallpaper in the menu of NES/SNES Mini. It must be in 512x184 PNG format.
Videos:
Spoiler
Also from yyoossk comes an SNESMini Custom SoundEffect Module with details below, to quote:
=== Sound Effect Hack ===
This module allows to disable NES/SNES Mini's sound effect or replace it with your own sound.
Just replace sound effect file if you want to hear your own sound effect in the menu of NES/SNES Mini. It must be in PCM format.
- replace se_sys_blind_close.wav to blindclose.wav
- replace se_sys_blind_open.wav to blindopen.wav
- replace se_sys_cancel.wav to cancel.wav
- replace se_sys_click_game.wav to clickgame.wav
- replace se_sys_click_replay.wav to clickreplay.wav
- replace se_sys_click.wav to click.wav
- replace se_sys_cursor.wav to cursor.wav
- replace se_sys_delete.wav to delete.wav
- replace se_sys_lock.wav to lock.wav
- replace se_sys_push.wav to push.wav
- replace se_sys_smoke.wav to smoke.wav
- replace se_sys_unlock.wav to unlock.wav
- # NES Mini: usr/share/clover-ui/resources/sounds/hvc/
- # SNES Mini (USA): usr/share/ui/snes-usa/resources/sounds/hvc/
- # SNES Mini (EUR): usr/share/ui/snes-eur/resources/sounds/hvc/
- # Super Famicom Mini (JAP): usr/share/ui/shvc/resources/sounds/hvc/
This module allows to disable NES/SNES Mini's sound effect or replace it with your own sound.
Just replace sound effect file if you want to hear your own sound effect in the rollback-uimenu of NES/SNES Mini.
- PCM format
- sampling rate 32000hz
- two channels
- bit rate 1024kbps
- replace usr/share/canoe/rollback-ui/SE_SYS_Cancel.wav to rollbackuicancel.wav
- replace usr/share/canoe/rollback-ui/SE_SYS_Click.wav to rollbackuiclick.wav
- replace usr/share/canoe/rollback-ui/SE_SYS_Count.wav to rollbackuicount.wav
- replace usr/share/canoe/rollback-ui/SE_SYS_Cursor.wav to rollbackuicursor.wav
- replace usr/share/canoe/rollback-ui/SE_SYS_Click_Replay.wav to rollbackuireplay.wav