@function button-hovered-color($background-color, $color) {
    @return null;
}

@function button-disabled-color($background-color, $color) {
    @return null;
}

@function button-background-gradient($background-color) {
    @return null;
}

@function button-hovered-background-gradient($background-color) {
    @return null;
}

@function button-pressed-background-gradient($background-color) {
    @return null;
}

@function button-focused-background-gradient($background-color) {
    @return null;
}

@function button-disabled-background-gradient($background-color) {
    @return null;
}

@function button-focused-outline-color($background-color, $color) {
    @return null;
}