Merge pull request #384 from mauromascarenhas/shadow-dom

Support to "Shadow DOM"

Author: wuda-io

sass/components/_theme_variables.scss

@@ -1,4 +1,4 @@
-:root {
+:root, :host {
     --surface-color: #f3f6fc;
     --background-color: #ffffff;
 
@@ -53,7 +53,7 @@
     --md_sys_color_on-surface: 28, 27, 31;
 }
 
-:root[theme='dark'] {
+:root[theme='dark'], :host[theme='dark'] {
     --background-color: #121212;
     --surface-color: #242424;