In an effort to restore them as much as I could, I used a combination of waifu2x ("Single-Image Super-Resolution for Anime-Style Art using Deep Convolutional Neural Networks"), Clip Studio Paint resize/cleanup tools, and manual cleanup done by hand. Unfortunately, the red text on the title page was a lost cause. If anyone can decipher solid red rectangles please contact me lol. Source: about 1 year ago

Maybe this would help. There's also an app version of it. Source: over 1 year ago

I would recommend putting it through an upscaler beforehand, it seems a bit small. Source: over 1 year ago

Http://waifu2x.udp.jp/index.html found this image upscaler from https://www.reddit.com/r/FireEmblemHeroes/comments/a51f0k/i_turned_yusuke_kozakis_artwork_into_a_high/?st=JPIZKYIB&sh=f12f76fe a while ago, perhaps that would be the closest if IS doesn't release anything. Source: over 1 year ago

You can make it bigger for print by using by using an Japanese AI image enlarging tool. Source: over 1 year ago

Do you know any app that is very similar to Just Color Picker? It's almost perfect. Unfortunately, it's only for Windows. It's working properly using Wine, but why not switching to a native app. Source: about 1 year ago

Just Color Picker 5.7 - best free colour tool for Windows and macOS (annystudio.com). Source: over 1 year ago

Thanks for the advice I will add more option like Just Color Picker soon in the next update. Source: over 1 year ago

Now make it a color picker like Just Color Picker. Source: over 1 year ago

- jcpicker: https://annystudio.com/software/colorpicker/ Nice app jus for pick up colors and at the same time offers you a list of compatibility colors. (ALT+X to save the color). Source: almost 2 years ago