first time I've ever seen negrito... and it doesn't act like its a new word for me.
That happens to me once a week. It's frustrating, but for a free app I can't complain.
So what? Why do people complain about this?? If you get it wrong, you are more likely to remember it next time! Besides that, it is hardly rocket science to complete a sentence.
What if the font colour is red. Then how do you make that red and bold… umm still "negrito"?
Put two asterisks on either side of the phrase you want to make bold. Only one on either side for italics.
Think "grito" in Spanish, which means "shout". So if you write in "negrito" then it's like you're shouting, but in written form. i.e. Writing in bold.
Does this mean, "His penmanship is bold," or "His writing style is dark," or "He types using a bold font"? We would never say in US English, "He writes in bold."
Actually, I think this translation is incorrect. It seems to mean simply, that he literally writes in boldface. Like for example if he is sitting at his computer and wants to make a point that he is writing about very clear he would write it in boldface. If Duo wants to use the more common meaning to the word bold than it should have constructed the sentence more clearly to suggest that his actions are bold.