How to change btn-primary background color in Bootstrap 4?

Question

Sass

In bootstrap.scss I fixed all unnecessary topics:

$theme-colors: map-remove($theme-colors, "info", "light", "dark", "secondary", "warning", "danger", "success");

Left himself one "primary". I set it to the color I wanted.

Now there is a problem.
Want to change colors for btn-primary and for btn-outline-primary ?

Found this design:

$new-bg =  #eb5757;

.btn-outline-primary {
    @include button-outline-variant($new-bg, #222222, lighten($new-bg,15%), $new-bg);
}

Its disadvantage is that it does not create css with the colors I need, but simply overrides them, adding below those generated above.

How to generate a file so that the final styles are included once in the final file?