// It overwrites the default primary color variable. 
// It will generate a monochromatic palette based on this color.
$wp-admin-primary:    #075FB3;

// Optional variables to create a multi color palette
$wp-admin-secondary:  #AE4450;
$wp-admin-tertiary:   #FFC008;

// Overwrite source variable
// `$link`: blue;

// @import '~wp-admin-custom/admin';
@import 'node_modules/wp-admin-custom/admin';

// Overwrite source classes
...