US198278 added TODOs

Author: chrisdo1

elements/pfe-tabs/src/pfe-tabs.scss

@@ -75,6 +75,7 @@ $pfe-tabs__panel--PaddingLeft-factor:  2;
 :host([on="dark"]) {
   @include pfe-theme($theme: "dark");
 }
+// TODO: address tabs on darker and darkest themes.
 // :host([color="darker"]) {
 //   @include pfe-theme($theme: "darker");
 // }
@@ -86,7 +87,7 @@ $pfe-tabs__panel--PaddingLeft-factor:  2;
 :host([on="light"]) {
   @include pfe-theme($theme: "light");
 }
-
+// TODO: address tabs on lighter and lightest themes.
 // :host([on="lighter"]) {
 //   @include pfe-theme($theme: "lighter");
 // }