Trying to have more than 1 color of text.

It seems that at a basic level, text can be only one color and you can’t set text based on where its put like you can on other platforms. So I am in my index.json and below is the code for the section I want to change. I would like the text black. I have tried adding color: 000000 in many locations and nothing happens besides me breaking the file. Can someone help please? Also, can someone recommend a good book to learn this stuff? I can’t afford to pay an outsourcing company to do this. Thank you in advance.

},
“16515167063719be23”: {
“type”: “rich-text”,
“blocks”: {
“165151670694f1e93d-1”: {
“type”: “text”,
“settings”: {
“text”: “

tuff</p>”

}

@SvenO
Hii,
Can You please share your Store URL and store details i will check code and provide proper solution