[Feature Request] Custom colors for file extensions

[Crence]

Please add option to set custom colors for specific file extensions.

It would be really great if one could decide in what color specific file extensions should look like. For example I could set .php files to look purple, .twig files to look green and not that much related files to my code, like all images in different formats (.jpg, .png, .gif and etc.) to look grey.

[Cryofox]

I would also like this feature. With a large number of differing file types. I would like to have a consistent look across not only the project I'm actively working on, but all my projects.