- clean ripple effect;

- clean warning rule;
- update solid background-activated var;

core/src/components/button/button.ionic.scss

@@ -43,7 +43,7 @@
 // --------------------------------------------------
 
 :host(.button-solid) {
-  --background-activated: #{globals.ion-color(primary, shade)};
+  --background-activated: #{globals.current-color(shade)};
   --background-hover: #{globals.ion-color(primary, shade)};
   --background-focused: transparent;
   --background-hover-opacity: 1;
@@ -69,16 +69,6 @@
   --ripple-color: var(--background-activated);
 }
 
-// Provide fallbacks for ion-color-base for all colors
-:host(.button-outline.ion-color.ion-color-warning) {
-  .button-native {
-    --ion-color-base: #{globals.$ion-text-warning};
-  }
-  ion-ripple-effect {
-    --ion-color-base: var(--ion-color-base, #{globals.current-color(shade, $subtle: true)});
-  }
-}
-
 // Clear Button
 // --------------------------------------------------
 
@@ -98,18 +88,6 @@
   }
 }
 
-// Ripple Effect
-// -------------------------------------------------------------------------------
-
-:host(.button-solid.ion-color) ion-ripple-effect {
-  color: globals.ion-color(primary, shade);
-}
-
-:host(.button-outline.ion-color) ion-ripple-effect,
-:host(.button-clear.ion-color) ion-ripple-effect {
-  color: globals.current-color(shade, $subtle: true);
-}
-
 // Button Sizes
 // -------------------------------------------------------------------------------