When my laptop starts up, it used to show a white bootup screen with the logo of the manufacturer. Right after that the windows start up screen would show up.
Lately, when I start the computer, the white screen has started to appear more and more yellowish/orangish. This only lasts on the boot screen however, as soon as the windows black background loading screen shows up, the colors are normal and from there on the colors remain normal no matter how long my computer stays on.
It used to be a faint yellowish hue, but last night, it was almost completely orange, a sharp contrast from the white.
What causes this and is this something to be concerned about?