Add now icon for now.json

[LukasPolak]

No description provided.

[PKief]

Hi, there's already another pull request for this kind of icon: #428
The problem of your suggested icon is the white color. Could you imagine how it looks like on a light theme with a bright background? I assure you, it'll be hard to recognize. The Material Icon Theme was implemented to support both light and dark backgrounds. This is why we should either provide an icon with a color that works for both themes or two icons, one for light and another for a dark background.

[LukasPolak]

Hi, I have added the light version of the icon.
In term of duplicate PR, how should I make the update?
Thanks!

[LukasPolak]

It is ok if icons are purely white and black?
It's because of the brand.

[PKief]

@LukasPolak Thank you, I'll take a look.

It's actually not a problem if multiple pull requests are created for the same icon. I just wanted to point out that there already existed another one ;)