Life is strage: true color extract SMS, and other stuff

[ljy0704]

Hi everyone.
I'm trying to transtlate this game.
I figure out how to extract localization but SMS, letters, or posters and this thing on image.png. (black background text file)
I can't figure out how to unpack this stuff and translate.

[ljy0704]

how to translate this text? or SMS text?

if you also know about how to extract and change poster please give me some advice

[GeneralC4]

This is a gift from me.