resources\aws png-optimization(loss less)

[pea-sys]

Optimized png files in aws folder.
I think there is a user benefit.
In exchange, the size of this repository will increase, which may be a disadvantage for developers.

[mingrammer]

It is a good improvement. @pea-sys I wonder which method did you use to optimize the images. Can we apply that method to other images?

[pea-sys]

@mingrammer
I used a simple tool.
https://github.com/pea-sys/ZopfliPng-GUI

I can optimize other images as well, do you mind if I use other PR?

[mingrammer]

A couple of years ago, I opened an issue about optimizing the image size: #176. I wanted to add an optimization step to autogen process with a PNG optimizer. My first candidate for PNG optimizers was oxipng which is a multithreaded PNG optimizer written in Rust. (it is a CLI)

Your tool also looks good. But it is GUI based tool and runs on only a Windows environment. So I'd like to consider using the oxipng to automate the optimization processing while running autogen script. WDYT?

[pea-sys]

I created this tool for non-developers. I agree that it is not very convenient for developers.

It takes a long time to optimize all images.
It would seem that the method of selecting files to be optimized should also be optimized.

As an automatic optimization tool, this tool looks good at first glance.
https://github.com/calibreapp/image-actions

However, the tool accepts the push and then pushes the auto-optimization again, which conversely increases the repository size.