angular material changing default font color

Question

i am using angular material and a bit lost at theming. I am using the prebuilt indigo-pink theme which is included in my styles.scss as below

@import "~@angular/material/prebuilt-themes/indigo-pink.css"; 

Based on the doc i created a new file called theme.scss and included it in the angular.json after styles.scss. The theme.scss looks like below

@import '~@angular/material/theming';

@include mat-core();

$sg-app-primary: mat-palette($mat-indigo);
$sg-app-accent:  mat-palette($mat-pink, A200, A100, A400);

$sg-app-theme: mat-light-theme($sg-app-primary, $sg-app-accent);

@include angular-material-theme($sg-app-theme);

My Requirement I just need to change default font color to white rather black everywhere. I dont need to change anything else at all. I have copied the primary and accent pallete just from example. so feeling even they are not required to be changed.

Solution

I believe this post answers your question: https://stackoverflow.com/a/46157803/10730815. Basically, you need to build a custom foreground map and merge it into your theme. Combining your code snippet and the ones in the post above gives something like this for your styles.scss:

@import '~@angular/material/theming';

@include mat-core();

$sg-app-primary: mat-palette($mat-indigo);
$sg-app-accent:  mat-palette($mat-pink, A200, A100, A400);

$sg-app-theme: mat-light-theme($sg-app-primary, $sg-app-accent);

@function my-mat-light-theme-foreground($color) {
    @return (
        base:              $color,
        divider:           $white-12-opacity,
        dividers:          $white-12-opacity,
        disabled:          rgba($color, 0.38),
        disabled-button:   rgba($color, 0.38),
        disabled-text:     rgba($color, 0.38),
        hint-text:         rgba($color, 0.38),
        secondary-text:    rgba($color, 0.54),
        icon:              rgba($color, 0.54),
        icons:             rgba($color, 0.54),
        text:              rgba($color, 0.87),
        slider-off:        rgba($color, 0.26),
        slider-off-active: rgba($color, 0.38),
        slider-min:        rgba($color, 0.38)
    );
};

$white-foreground: my-mat-light-theme-foreground(white);
$my-app-theme-custom: map-merge($sg-app-theme, (foreground: $white-foreground));

@include angular-material-theme($my-app-theme-custom);

/* For the non-Angular Material items */
body {
    color: white;
}

Comments

[Christian Matthew]

this is out of date but i am trying to figure out how to update it. I will say it seems like not a good way to do this because of the light and dark theme breakage.