Re: RFR: 8282526: Default icon is not painted properly

[Alexander Zuev]

On Sun, 13 Mar 2022 21:06:24 GMT, Alexander Zuev <kiz...@openjdk.org> wrote:

> Detect the situation where we do need to perform interpolation during 
> ImageIcon
> painting and set a hint to the rendering to perform bicubic approximation so
> image details are preserved during transition.

The icon returned by the system is 32x32 icon that looks like this:
![FileIcon](https://user-images.githubusercontent.com/69642324/158079313-800ba0de-d009-4b6a-8b08-de71bf18b106.png)
After approximation to the 16x16 with nearest neighbor  it now looks like this:
![FileIconNearest](https://user-images.githubusercontent.com/69642324/158079342-b1f111fd-7f9c-4eda-af59-59a25d236fb9.png)
So the significant details are lost and the resulting icon looks cropped. After 
the fix the icon in the test looks fine:
![FileIconBiqubic](https://user-images.githubusercontent.com/69642324/158079416-65cb3dcd-514f-4a9b-9677-c12ae9312792.png)

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PR: https://git.openjdk.java.net/jdk/pull/7805