Updated elementary OS & added Parrot OS icons

[yozachar]

Coloured

OS	1080p	2k	4k
elementary OS
Parrot OS

Suggested white icons for Parrot OS

Not added to commit yet, is it okay can I add it?

OS	1080p	2k	4k
Parrot OS

[yozachar]

@vinceliuice thanks for merging my pull.

May I ask a few questions.

1. That white icons for Parrot OS is okay... right, does it not blend with the background for Vimix, Stylish and Slaze?
2. I'm having trouble adding an icon for a custom boot menu entry. Can you help me here?

[vinceliuice]

This is beyond my knowledge and I also don’t know how to deal with it

[yozachar]

Oh and one more thing, I use an image-bot which automatically compresses images. Here's the pull request on my fork: https://github.com/joe733/grub2-themes/pull/1, you might wanna check it out before I merge it to master and create a pull here.

[vinceliuice]

OK!