Why does my Charizard's stats chart show the wrong colours for its nature?

Question

My Charizard is jolly nature but in the stats chart, the Sp. Atk is red and Attack is blue.. So what nature is my Charizard exactly? This is Pokémon sword, and the Charizard is the one I got from Leon.

Comments

Did you feed it any Mints?

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I’m not sure if I did, but now that you’ve mentioned it, I might just have fed it a Mint..

So feeding it Mints does not change the nature in the description page but only on the stat page?

Answer 1

When used from the Bag on a Pokémon, it changes the effect of a Pokémon's Nature on its stats to that of the Nature corresponding to the mint used. Its actual Nature, however, is unchanged, so its disliked flavor, Toxel's evolution into Toxtricity, Natures of wild Pokémon encountered using Synchronize, and Nature that would be inherited from breeding will remain the same.

https://bulbapedia.bulbagarden.net/wiki/Mint

Since you have said that you might have fed it a mint, that is the likely explanation, since only the stat changes but not the nature itself.