How to change Ubuntu 14.04 boot screen?

Question

linux

I have Elementary OS Freya. Wanted to change the loading screen. It's like this:

I know where to change the logo. In /lib/plymouth/themes folder
But my problem is different. I want to change not the logo, but the background. From black to light red. How can I do that?

Answer 1

there is something about this:
https://habrahabr.ru/sandbox/47221/
Window.SetBackgroundTopColor in the theme script

Answer 2

As for me, you're just fucking suffering!