Here you have a colorfull level indicator for science packs. It shows how much is in your logistic network and if there is nothing left, it will show you a blinking "x" mark. You can have it at any color you want, just set the color in the constant combinator on the top left.
- Set colors in the constant combinator
- Set full chest number
- Set which science you want to indicate
- Connect the top right combinator with your logistic