Dark words which are tricky/impossible to read

Dear Mojang Studios,

Today Minecraft Java has been playing up. Everything is normal until I create a new world (singleplayer) and all of the text on my screen turns black inside the application - I have taken some screenshots. When I exit the world, It is still black - I'm not using any texture packs or mods.

I have tried this on many different worlds and different versions and still nothing. 

I'm wondering if it is just me or if the whole community is confused.

If possible, please fix this 

Thank you for your amazing games

Josh