Darker graphics

I just updated my Minecraft, and when I opened Word after the update, I was confused as to why the graphics in the game were so dark, even though the settings were not dark at all. At first I thought this was a feature, but after I asked my friend, he said his Minecraft is not like that, just for your information, I don't use any resource packs. And using the default video settings, I know it's just a small issue but it really messes with my gaming experience.