feat(textfield): add support for several new tokens

PiperOrigin-RevId: 479246386

Author: yavanosta

packages/mdc-textfield/_filled-text-field-theme.scss

@@ -101,7 +101,10 @@ $_light-theme: (
   input-text-color: null,
   input-text-font: null,
   input-text-line-height: null,
+  input-text-placeholder-color: null,
+  input-text-prefix-color: null,
   input-text-size: null,
+  input-text-suffix-color: null,
   input-text-tracking: null,
   input-text-type: null,
   input-text-weight: null,

packages/mdc-textfield/_mixins.scss

@@ -803,7 +803,10 @@ $_density-config: map.merge(
   $rtl-reflexive: false,
   $query: feature-targeting.all()
 ) {
-  @if meta.type-of($radius) == 'list' and list.length($radius) > 2 {
+  @if (meta.type-of($radius) == 'list') and
+    (list.length($radius) > 2) and
+    (list.nth($radius, 3) != 0 or list.nth($radius, 4) != 0)
+  {
     @error "mdc-textfield: Invalid radius #{$radius}. Only top-left and top-right corners may be customized.";
   }
 

packages/mdc-textfield/_outlined-text-field-theme.scss

@@ -92,7 +92,10 @@ $_light-theme: (
   input-text-color: null,
   input-text-font: null,
   input-text-line-height: null,
+  input-text-placeholder-color: null,
+  input-text-prefix-color: null,
   input-text-size: null,
+  input-text-suffix-color: null,
   input-text-tracking: null,
   input-text-type: null,
   input-text-weight: null,

packages/mdc-textfield/_text-field-theme.scss

@@ -110,7 +110,10 @@ $_light-theme: (
   input-text-color: null,
   input-text-font: null,
   input-text-line-height: null,
+  input-text-placeholder-color: null,
+  input-text-prefix-color: null,
   input-text-size: null,
+  input-text-suffix-color: null,
   input-text-tracking: null,
   input-text-type: null,
   input-text-weight: null,