Angular-material: Adding border to a button in the theme - angular-material

Question

My goal is to make all "accent" buttons (<button mat-raised-button color="accent">) in my theme to have a blue border, blue text and a white background. I was reading about the custom theme setting in angular-material.
What I could do is, set my "primary" and "accent" colors in a theme and set that to all the button elements. With this, all my primary buttons are solid blue and accent buttons are white.
$my-button-primary: mat-palette($my-blue, 500, 200, 800);
$my-button-accent: mat-palette($my-white, 500, 200, 800);
$my-button-theme: mat-light-theme(
$my-button-primary,
$my-button-accent
);
#include mat-button-theme($my-button-theme);
But, to set a blue border and a blue text, I need to manually write an SCSS style.
#mixin buttons-theme($theme) {
$accent: map-get($theme, accent);
.mat-raised-button.mat-accent,
.mat-stroked-button.mat-accent,
.mat-flat-button.mat-accent,
.mat-button.mat-accent {
background-color: white;
color: mat-color($accent);
border: solid 1px mat-color($accent);
}
}
Now, is there a way to include the button style while creating the theme? Or is there a better way to write the above code?