Ubuntu: Changing the default Look & Feel of Ubuntu (Theme, Icons, Wallpapers, Brightness, Grub colour, Lock screen)

For those who hate the default colour scheme in Ubuntu

The default colour scheme is the most annoying thing that I find in Ubuntu OS. When I get an Ubuntu machine, one of the first things I do is, customizing the look and feel of OS with relatively simple tweaks mentioned below. Hope you will use those steps to make your Ubuntu great again 😊

Change purple colour background in Grub

16.04 and later:

sudo gedit /usr/share/plymouth/themes/ubuntu-logo/ubuntu-logo.grub

17.10 and later:

sudo gedit /usr/share/plymouth/themes/default.grub

The default setting would be:

if background_color 44,0,30,0; then
  clear
fi

Edit the RGB colour values with your favourite colour, save the file, and restart your machine to see the changes. Here’s how my edited setting looks like:

if background_color 0,24,38,0; then
  clear
fi

PRO TIP: If you need an easy way to obtain the RGB values of your favourite colour, use the ColorHexa website (https://www.colorhexa.com/).

Change lock screen background