hi @Melsu,
Please check this conversation, you will get some insights from it.
And if you want to change color in your theme then there is no need to clone any theme inside your platform instead you can create your own.
If you have no idea how to create new them then you can take reference of red-theme.
Create your own theme like red-theme, for example, my-theme and then pass this name in your lms.env.json file like this
DEFAULT_SITE_THEME = ‘my-theme’
Update your assets and then restart your services.
If you want to change color of the platform then you can simply change a variable in this file and you are good to go.