OG mode artset switching issues thread

I decided to make just one issue listing all issues with the OG artset mode, so I can see them all in one place. Here are the current issues I need to chase up:

## TODO

- [ ] Add og sprites/backgrounds to hou plus (perhaps try the method below?)
- [ ] **Consider porting background/sprites directly from OG scripts?**

From a user on discord.
> recently I replayed Onikakushi unmodded on steam and for example keichi eating mochi happens not in the kitchen, but in his living room which is huge. You get a completely different feel and mood for the situation. You feel how big the keichi mansion is and how unsettling it is to be there alone. You also afterwards in the GOU anime recognise that same living room from the og.
> locations that I didnt understand why are there in GOU appeared in unmodded steam version
> And were beautiful to look at
> having 3 different angles of keichi's room feels even more as if you're in his shoes. Its incredible
> Basically significantly more immersive if there are more og backgrounds

- [ ] Complete hou sprite update, which should also fix the eye cut-in issue: https://github.com/07th-mod/higurashi-rei/issues/14

## Known Issues
- https://github.com/07th-mod/matsuribayashi/issues/46
- https://github.com/07th-mod/minagoroshi/issues/38
- https://github.com/07th-mod/higurashi-rei/issues/10
- https://github.com/07th-mod/watanagashi/issues/114
- When the "negative/color inversion" effect is applied, the black letterboxing to make it 4:3 turns white
- Tips/Preview thumbnails use the new console art instead of the old/ryukishi art (I think they're baked into the sharedassets0.assets file)
- Offset choice buttons, see https://github.com/07th-mod/higurashi-assembly/issues/65#issuecomment-926899643
- A fix for this has been created, but not yet merged into `mod` branch, see https://github.com/07th-mod/higurashi-assembly/commit/31996c0c002476737d3cf64c365c76ec2bf4b201
- [Transparent/stretched sprite issue [Spoiler] [Experimental DLL + OG Mode ] [low prirority] ](https://github.com/07th-mod/higurashi-assembly/issues/55) (this issue was only ever reported once)
- [Unnecessary file accesses when OG mode is enabled](https://github.com/07th-mod/higurashi-assembly/issues/57#issuecomment-904249145)
- [Switching from console to original when zoom effect is active may cause issues](https://github.com/07th-mod/higurashi-assembly/issues/57#issuecomment-794607015) - note: this might be fixed on the latest DLL, since a bug on Matsuribayashi was fixed on the latest DLL which happens when you change to OG mode.

### Chapter specific issues:

- ~~[Tsumihoroboshi issues](https://github.com/drojf/match_higurashi_scripts/issues/17)~~ **Fixed**
- ~~[Meakashi issues](https://github.com/drojf/match_higurashi_scripts/issues/16)~~ **Fixed**
- [Wrong title image for Minagoroshi/Matsuribayashi](https://github.com/07th-mod/higurashi-assembly/issues/57#issuecomment-945352743)
- [Stretched mangagamer logo in some chapters](https://github.com/07th-mod/higurashi-assembly/issues/57#issuecomment-945357390)

## General Notes / Oddities with OG mode
- sprites and backgrounds may not always match the OG game / voice only patch. You probably want the voice-only patch if you want it to match exactly
- To avoid having to remake all the text assets, any text assets (images which are just text on black background) which are in 16:9 will remain 16:9, even in 4:3 mode

This is a tracking issue for multiple bugs in the OG art mode of a Higurashi visual novel mod. The linked sub-issues (e.g., higurashi-rei#14, higurashi-assembly#65) contain specific problems like sprite transparency, file access, and UI glitches. A newcomer would need to understand the mod's asset pipeline, the Unity project structure, and how the OG mode switching works. Start by examining the commit 31996c0c for the offset button fix and the experimental DLL mentioned. 'Done' means each listed sub-issue is resolved or a fix is integrated.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.