When launching into a brand new seed, the first few days in Minecraft are crucial. With limited resources and tools, you'll likely need a strong starter house to keep you going before you endeavour to ...
Open the zip file within PPSSPP as if it were a game. It will automatically place all the files in the correct location for you. Enable texture replacement by heading to settings>tools>developer ...
Create a pull request, note that the changes have to go through a verification process. The texture must be SFW The texture should not have any "watermark" referring the user that makes the change.