CKEditor - images and text colors

I’m using Typo 12.4.1.

I need to be able to add an image to text in ckeditor, I found an extension for t3x-rte_ckeditor_image. I downloaded the extension, activated it and added it to the template. I also modified the Default.yaml file from the rte_ckeditor extension, but I still can’t add the image.

I also need to change the color of some elements, but I can’t find any solution to this problem.