Where did the text size and color buttons go in the Text Editor?
After the Moodle 2.8 upgrade you won’t be able to adjust the size and color of text: instead, you should use the PARAGRAPH STYLES button to select an appropriate heading or use bold or italics for emphasis.
Formatting text with size and color changes alone doesn’t translate well for users with vision disabilities, or those who are accessing your course with a screenreader.
Accessibility
Use the 
button to check your text for accessibility compliance. You can also use the 
to check for screen reader compatibility.
In addition, when you add images to Moodle using the text editor you will be prompted to enter a description of the the image automatically when you click SAVE.
This Cheat Sheet provides you an overview of the functionality available to you in the Moodle text editor. This will help you better determine which buttons to utilize as you work in Labels, Assignments, Section descriptions, and any place you can edit text.