I have used font-face to add fonts in ATTO editor for Boost and Fordson theme succesfully.
Just after uploading the .WOFF font files I have added the below code to Raw SCSS input window of each theme and added some line introducing the font family to ATTO font family plugin and BAMM! It works beautifully!
But unfortunately there is no place to add this code in Adaptable theme and it is strange as it was really adaptable until this point!! Well, I added the code to CSS and JS Codes part already but that does not work.
BTW: My moodle version is 3.9.4 and Adaptable version is 2.4.4.
I would be greatful to have your opinions here!