When entering a new superflat world this problem occurs.
When flying up a weird bow pattern is visible and becomes more red in the distance.
The pattern changes by the perspective of the player.
I tried this on a different pc and monitor and the problem is still there.
Changing the block type wont help, although the small amount of color in the distance changes with the biome, and snow tiles have a red outline.

Theres also this weird, white circle at the surface. When looking at this "circle" the weird effect is gone, which means the blocks in the distance only seem normal when looking straight down.

The intensity of the color gets greater with higher distances.
Since I couldnt find any solutions online I report this as a bug, especially because this only happens in superflat worlds.
There are two pictures attached which describes my problems.

I originally wanted to take a video of the problems but the file sizes have been to big.

The "circle" is more visible in-game than on the screenshots.
The screenshots were being taken by the in-game screenshot button (just to be sure).

Edit : I tried reinstalling/updating my graphic cards drivers, but it doesnt seem to affect anything in the game, Im not sure if this is really a bug or just a problem on my side, so I may consider deleting this report...