A regression of Japanese font [Resolved]

[LunaMoo]

While this might appear as regression it's likely it was just working accidently or due to different settings in the past as that's really just a very common upscaling issue. Most games will have minor glitches like this when using any other rendering res than native and it's also usually look worse with japanese fonts that tend to be very tightly packed due to amount of characters they have to store. That underline is really just a top of a character right below "empty" character.
If you want more info about this problem, read this post by [Unknown] which has very graphic explanation of it.

As of now to fix it properly:
- just use x1 rendering res.

To hide it while using higher rendering res:
- force nearest texture filtering(~ imo bad thing to do;p),
- usually higher texture scaling helps on it's own ~ at same or higher multiplier than display res,
- texture replacements in latest versions of ppsspp can also be used to correct it even in cases when automatic scaling fails.

In 2D games that does not have much 3D objects like this upscaling postprocessing shaders like 5xBR can also be used with nice results since with that graphic is rendered at x1 res and the output is then scaled. This has both advantages and distadvantages as it's much faster than high render+texture res and scales everything including things not affected by texture scaling, but looks worse on stretched graphics(especially with "pixel art") and you can see pattern changes/pixel travel on moving objects.