diff --git a/lib/core/custom-theme/material-theme.scss b/lib/core/custom-theme/material-theme.scss
new file mode 100644
index 0000000000..0878eb6bac
--- /dev/null
+++ b/lib/core/custom-theme/material-theme.scss
@@ -0,0 +1,24 @@
+@use 'sass:map';
+@import './theme/theme-data';
+
+$custom-theme: mat-light-theme(
+    (
+        color: (
+            primary: map.get($palettes, primary),
+            accent: map.get($palettes, accent),
+            warn: map.get($palettes, warning),
+        ),
+        typography: $app-typography,
+    )
+);
+
+@if $background-color {
+    $custom-theme: get-custom-background-color(
+        $background-color,
+        $custom-theme
+    );
+}
+
+@if $text-color {
+    $custom-theme: get-custom-text-color($text-color, $custom-theme);
+}
diff --git a/lib/core/custom-theme/theme/custom-background-color.scss b/lib/core/custom-theme/theme/custom-background-color.scss
new file mode 100644
index 0000000000..4c2783daf4
--- /dev/null
+++ b/lib/core/custom-theme/theme/custom-background-color.scss
@@ -0,0 +1,25 @@
+@use 'sass:map';
+@use 'sass:color';
+
+@function get-custom-background-color($background-color, $theme) {
+    $background: map.get($theme, background);
+    $card: map.get($background, card);
+
+    $new-card-color: color.adjust($background-color, $lightness: 10%);
+    $new-selected-button: color.adjust($background-color, $lightness: 5%);
+
+    $background: map.merge($background, (background: $background-color));
+    $background: map.merge($background, (card: $new-card-color));
+    $background: map.merge($background, (modal: $new-card-color));
+    $background: map.merge($background, (dialog: $new-card-color));
+    $background: map.merge($background, (selected-button: $new-selected-button));
+
+    $theme-with-new-background: map.merge($theme, (background: $background));
+
+    $theme-color: map.get($theme-with-new-background, color);
+    $theme-color-background: map.merge($theme-color, (background: $background));
+
+    $theme-with-new-background: map.merge($theme-with-new-background, (color: $theme-color-background));
+
+    @return $theme-with-new-background;
+}
diff --git a/lib/core/custom-theme/theme/custom-palette-creator.scss b/lib/core/custom-theme/theme/custom-palette-creator.scss
new file mode 100644
index 0000000000..1ef972c6d5
--- /dev/null
+++ b/lib/core/custom-theme/theme/custom-palette-creator.scss
@@ -0,0 +1,153 @@
+@use 'sass:map';
+@use 'sass:math';
+@use 'sass:color';
+@use '../../colors';
+
+@function multiply($fore, $back) {
+    $red: color.red($back) * color.red($fore) / 255;
+    $green: color.green($back) * color.green($fore) / 255;
+    $blue: color.blue($back) * color.blue($fore) / 255;
+
+    @return rgb($red, $green, $blue);
+}
+
+@function get-color-luminance($color) {
+    $colors: (
+        red: color.red($color),
+        green: color.green($color),
+        blue: color.blue($color),
+    );
+
+    @each $name, $value in $colors {
+        $adjusted: 0;
+        $value: $value / 255;
+
+        @if ($value < 0.0393) {
+            $value: $value / 12.92;
+        } @else {
+            $value: ($value + 0.055) / 1.055;
+            $value: math.pow($value, 2.4);
+        }
+
+        $colors: map.merge(
+            $colors,
+            (
+                $name: $value,
+            )
+        );
+    }
+
+    @return (map.get($colors, red) * 0.2126) + (map.get($colors, green) * 0.7152) + (map.get($colors, blue) * 0.0722);
+}
+
+@function create-text-color($color, $colorType: 'primary') {
+    $red: color.red($color);
+    $green: color.green($color);
+    $blue: color.blue($color);
+
+    $light-text: $light-primary-text;
+    $dark-text: $dark-primary-text;
+
+    @if $colorType == 'accent' {
+        $light-text: $light-secondary-text;
+        $dark-text: $dark-secondary-text;
+    }
+
+    $light-text-luminance: get-color-luminance($light-text);
+    $dark-text-luminance: get-color-luminance($dark-text);
+    $background-color-luminance: get-color-luminance($color);
+
+    $light-text-luminance: $light-text-luminance + 0.5;
+    $dark-text-luminance: $dark-text-luminance + 0.5;
+    $background-color-luminance: $background-color-luminance + 0.5;
+
+    $luminance-contrast-for-light-text: $light-text-luminance / $background-color-luminance;
+    $luminance-contrast-for-dark-text: $background-color-luminance / $dark-text-luminance;
+    $text-colour: $light-text;
+
+    @if $luminance-contrast-for-dark-text > $luminance-contrast-for-light-text {
+        $text-colour: $dark-text;
+    }
+
+    @return $text-colour;
+}
+
+@function create-color-palette($color, $colorType: 'primary') {
+    $light: #fff;
+    $dark: multiply($color, $color);
+
+    $color50: color.mix($light, $color, 88%);
+    $color100: color.mix($light, $color, 70%);
+    $color200: color.mix($light, $color, 50%);
+    $color300: color.mix($light, $color, 30%);
+    $color400: color.mix($light, $color, 15%);
+    $color500: color.mix($light, $color, 0%);
+    $color600: color.mix($dark, $color, 13%);
+    $color700: color.mix($dark, $color, 30%);
+    $color800: color.mix($dark, $color, 46%);
+    $color900: color.mix($dark, $color, 75%);
+
+    /* stylelint-disable scss/dollar-variable-pattern */
+    $colorA100: color.adjust(saturate(color.mix($dark, $color, 15%), 80%), $lightness: 45.6%);
+    $colorA200: color.adjust(saturate(color.mix($dark, $color, 15%), 80%), $lightness: 35.6%);
+    $colorA400: color.adjust(saturate(color.mix($dark, $color, 15%), 100%), $lightness: 25.6%);
+    $colorA700: color.adjust(saturate(color.mix($dark, $color, 15%), 100%), $lightness: 20.5%);
+    /* stylelint-enable scss/dollar-variable-pattern */
+
+    $contrast50: create-text-color($color50, $colorType);
+    $contrast100: create-text-color($color100, $colorType);
+    $contrast200: create-text-color($color200, $colorType);
+    $contrast300: create-text-color($color300, $colorType);
+    $contrast400: create-text-color($color400, $colorType);
+    $contrast500: create-text-color($color500, $colorType);
+    $contrast600: create-text-color($color600, $colorType);
+    $contrast700: create-text-color($color700, $colorType);
+    $contrast800: create-text-color($color800, $colorType);
+    $contrast900: create-text-color($color900, $colorType);
+
+    /* stylelint-disable scss/dollar-variable-pattern */
+    $contrastA100: create-text-color($colorA100, $colorType);
+    $contrastA200: create-text-color($colorA200, $colorType);
+    $contrastA400: create-text-color($colorA400, $colorType);
+    $contrastA700: create-text-color($colorA700, $colorType);
+    /* stylelint-enable scss/dollar-variable-pattern */
+
+    $palette: (
+        50: $color50,
+        100: $color50,
+        200: $color50,
+        300: $color50,
+        400: $color400,
+        500: $color500,
+        600: $color600,
+        700: $color700,
+        800: $color800,
+        900: $color900,
+        /* stylelint-disable value-keyword-case */
+        A100: $colorA100,
+        A200: $colorA200,
+        A400: $colorA400,
+        A700: $colorA700,
+        /* stylelint-enable value-keyword-case */
+        contrast: (
+            50: $contrast50,
+            100: $contrast100,
+            200: $contrast200,
+            300: $contrast300,
+            400: $contrast400,
+            500: $contrast500,
+            600: $contrast600,
+            700: $contrast700,
+            800: $contrast800,
+            900: $contrast900,
+            /* stylelint-disable value-keyword-case */
+            A100: $contrastA100,
+            A200: $contrastA200,
+            A400: $contrastA400,
+            A700: $contrastA700,
+            /* stylelint-enable value-keyword-case */
+        ),
+    );
+
+    @return $palette;
+}
diff --git a/lib/core/custom-theme/theme/custom-text-color.scss b/lib/core/custom-theme/theme/custom-text-color.scss
new file mode 100644
index 0000000000..becd6fecdc
--- /dev/null
+++ b/lib/core/custom-theme/theme/custom-text-color.scss
@@ -0,0 +1,17 @@
+@use 'sass:map';
+
+@function get-custom-text-color($text-color, $theme) {
+    $foreground: map.get($theme, foreground);
+
+    $foreground: map.merge($foreground, (text: $text-color));
+    $foreground: map.merge($foreground, (secondary-text: $text-color));
+
+    $theme-with-new-foreground: map.merge($theme, (foreground: $foreground));
+
+    $theme-foreground-color: map.get($theme-with-new-foreground, color);
+    $theme-color-foreground: map.merge($theme-foreground-color, (foreground: $foreground));
+
+    $theme-with-new-foreground: map.merge($theme-with-new-foreground, (color: $theme-color-foreground));
+
+    @return $theme-with-new-foreground;
+}
diff --git a/lib/core/custom-theme/theme/custom-theme-palettes.scss b/lib/core/custom-theme/theme/custom-theme-palettes.scss
new file mode 100644
index 0000000000..68863f3d3c
--- /dev/null
+++ b/lib/core/custom-theme/theme/custom-theme-palettes.scss
@@ -0,0 +1,31 @@
+@use '@angular/material' as mat;
+@import '../../colors';
+@import './custom-palette-creator.scss';
+
+@function get-mat-palettes($primary-color, $accent-color) {
+    $mat-primary-palette: null;
+
+    @if ($primary-color) {
+        $custom-theme-primary-palette: create-color-palette($primary-color, 'primary');
+        $mat-primary-palette: mat.define-palette($custom-theme-primary-palette, 500);
+    } @else {
+        $mat-primary-palette: mat.define-palette($aca-primary-blue, A100);
+    }
+
+    $mat-accent-palette: null;
+
+    @if ($accent-color) {
+        $custom-theme-accent-palette: create-color-palette($accent-color, 'accent');
+        $mat-accent-palette: mat.define-palette($custom-theme-accent-palette, 500);
+    } @else {
+        $mat-accent-palette: mat.define-palette($aca-accent-green, A200);
+    }
+
+    $mat-warn-palette: mat.define-palette($aca-warn, A100);
+
+    @return (
+        primary: $mat-primary-palette,
+        accent: $mat-accent-palette,
+        warning: $mat-warn-palette,
+    )
+}
diff --git a/lib/core/custom-theme/theme/theme-configuration.scss.tpl b/lib/core/custom-theme/theme/theme-configuration.scss.tpl
new file mode 100644
index 0000000000..b96d9a679d
--- /dev/null
+++ b/lib/core/custom-theme/theme/theme-configuration.scss.tpl
@@ -0,0 +1,14 @@
+/*
+Specify theme parameters e.g.:
+
+$theme-config: (
+    primaryColor: #5175d2,
+    backgroundColor: #FAFAFA,
+    textColor: #793942,
+    accentColor: #C64F73,
+    baseFontSize: 26px,
+    fontFamily: Cursive
+);
+*/
+
+${THEME_CONFIGURATION}
diff --git a/lib/core/custom-theme/theme/theme-data.scss b/lib/core/custom-theme/theme/theme-data.scss
new file mode 100644
index 0000000000..66afaa6f5b
--- /dev/null
+++ b/lib/core/custom-theme/theme/theme-data.scss
@@ -0,0 +1,22 @@
+@use 'sass:map';
+@import '@angular/material/theming';
+@import './theme-configuration';
+@import './typography';
+@import './custom-theme-palettes';
+@import './custom-background-color';
+@import './custom-text-color';
+
+$primary-color: map.get($theme-config, 'primaryColor');
+$accent-color: map.get($theme-config, 'accentColor');
+$background-color: map.get($theme-config, 'backgroundColor');
+
+$text-color: map.get($theme-config, 'textColor');
+$base-font-size: map.get($theme-config, 'baseFontSize');
+$font-family: map.get($theme-config, 'fontFamily');
+
+$app-typography: get-mat-typography(
+    $base-font-size,
+    $font-family
+);
+
+$palettes: get-mat-palettes($primary-color, $accent-color);
diff --git a/lib/core/custom-theme/theme/typography.scss b/lib/core/custom-theme/theme/typography.scss
new file mode 100644
index 0000000000..152eaf5ac5
--- /dev/null
+++ b/lib/core/custom-theme/theme/typography.scss
@@ -0,0 +1,93 @@
+@use 'sass:map';
+@use '@angular/material' as mat;
+@import "../variables/font-family.scss";
+
+@function get-mat-typography($base-font-size, $font-family) {
+    $custom-typography: mat.define-typography-config(
+        $font-family: 'Muli, Roboto, "Helvetica Neue", sans-serif',
+        $display-4: mat.define-typography-level(112px, 112px, 300),
+        $display-3: mat.define-typography-level(56px, 56px, 400),
+        $display-2: mat.define-typography-level(45px, 48px, 400),
+        $display-1: mat.define-typography-level(34px, 40px, 400),
+        $headline: mat.define-typography-level(24px, 32px, 400),
+        $title: mat.define-typography-level(20px, 32px, 500),
+        $subheading-2: mat.define-typography-level(16px, 28px, 400),
+        $subheading-1: mat.define-typography-level(15px, 24px, 400),
+        $body-2: mat.define-typography-level(14px, 24px, 500),
+        $body-1: mat.define-typography-level(14px, 20px, 400),
+        $caption: mat.define-typography-level(12px, 20px, 400),
+        $button: mat.define-typography-level(14px, 14px, 500),
+        // Line-height must be unit-less fraction of the font-size.
+        $input: mat.define-typography-level(16px, 1.25, 400),
+    );
+
+    @if $base-font-size {
+        $custom-typography: mat.define-typography-config(
+            $display-4: mat.define-typography-level(8rem, 8rem, 300),
+            $display-3: mat.define-typography-level(4rem, 4rem, 400),
+            $display-2: mat.define-typography-level(3.21rem, 3.21rem, 400),
+            $display-1: mat.define-typography-level(2.42rem, 2.85rem, 400),
+            $headline: mat.define-typography-level(1.71rem, 2.28rem, 400),
+            $title: mat.define-typography-level(1.42rem, 2.28rem, 500),
+            $subheading-2: mat.define-typography-level(1.14rem, 2rem, 400),
+            $subheading-1: mat.define-typography-level(1.07rem, 1.71rem, 400),
+            $body-2: mat.define-typography-level(1rem, 1.71rem, 500),
+            $body-1: mat.define-typography-level(1rem, 1.42rem, 400),
+            $caption: mat.define-typography-level(0.86rem, 1.42rem, 400),
+            $button: mat.define-typography-level(1rem, 1rem, 500),
+            $font-family: $default-font-family,
+            $input: mat.define-typography-level(1.14em, 1.25, 400),
+        );
+    }
+
+    @if $font-family {
+        @each $key, $level in $custom-typography {
+            @if type-of($level) == 'map' {
+                $new-level: map.merge(
+                    $level,
+                    (
+                        font-family: $font-family,
+                    )
+                );
+                $custom-typography: map.merge(
+                    $custom-typography,
+                    (
+                        $key: $new-level,
+                    )
+                );
+            }
+        }
+
+        $custom-typography: map.merge(
+            $custom-typography,
+            (
+                font-family: $font-family,
+            )
+        );
+    }
+
+    @return $custom-typography;
+}
+
+@function get-custom-adf-font-sizes() {
+    @return (
+        'theme-adf-icon-1-font-size': 1.2rem,
+        'theme-adf-picture-1-font-size': 1.28rem,
+        'theme-adf-task-footer-font-size': 1.28rem,
+        'theme-adf-task-title-font-size': 1.28rem
+    );
+}
+
+@mixin base-font-size($font-size) {
+    html,
+    body {
+        font-size: $font-size !important;
+    }
+}
+
+@mixin base-font-family($font-family) {
+    html,
+    body {
+        font-family: $font-family !important;
+    }
+}
diff --git a/lib/core/custom-theme/variables/font-family.scss b/lib/core/custom-theme/variables/font-family.scss
new file mode 100644
index 0000000000..5d03830b89
--- /dev/null
+++ b/lib/core/custom-theme/variables/font-family.scss
@@ -0,0 +1 @@
+$default-font-family: 'Open Sans';
diff --git a/lib/core/ng-package.json b/lib/core/ng-package.json
index 6c880927db..d93bc63342 100644
--- a/lib/core/ng-package.json
+++ b/lib/core/ng-package.json
@@ -2,6 +2,11 @@
   "$schema": "../../node_modules/ng-packagr/ng-package.schema.json",
   "dest": "../../dist/libs/core",
   "assets": [
+    {
+      "glob": "custom-theme/**/*",
+      "input": "./",
+      "output": "/"
+    },
     {
       "glob": "assets/**/*",
       "input": "./src/lib",
diff --git a/stylelint-config.json b/stylelint-config.json
index 8f9063443b..0294b8e491 100644
--- a/stylelint-config.json
+++ b/stylelint-config.json
@@ -31,7 +31,8 @@
       "vh",
       "vw",
       "vmin",
-      "s"
+      "s",
+      "rem"
     ],
     "value-list-comma-space-after": "always-single-line",
     "value-list-comma-space-before": "never",
@@ -62,7 +63,12 @@
         "message": "The `initial` value is not supported in IE."
       }
     ],
-    "block-closing-brace-newline-after": "always",
+    "block-closing-brace-newline-after": [
+      "always",
+      {
+        "ignoreAtRules": ["if", "else"]
+      }
+    ],
     "block-closing-brace-newline-before": "always-multi-line",
     "block-opening-brace-newline-after": "always-multi-line",
     "block-opening-brace-space-before": "always-multi-line",
@@ -89,6 +95,8 @@
       {
         "resolveNestedSelectors": true
       }
-    ]
+    ],
+    "scss/dollar-variable-empty-line-before": null,
+    "scss/at-rule-conditional-no-parentheses": null
   }
 }