What is the issue transferring a design system project in Styles not appearing? 
A lot of headaches could have been avoided, if styles were as easy to transfer between files, as components.
way to export/import styles (text + colors)
Figma update Should be added function using Generate Styles.
File > Generate Styles
All Styles
Text
Color
Effect
Grid
Why is the right-click copy-and-paste not working?
Holding Shift Key, Select text style top to bottom.
Right Click OK, Why isn’t working Slecteted styles?
(copy styles and past styles functions)
but we can use keyboard short CTRL + C, CTRL + V, it works easy way awesome! 