set ab test color in zoid props

Author: nikrom17

Diff for: src/funding/paypal/config.jsx

@@ -33,6 +33,8 @@ export function getPayPalConfig(): FundingSourceConfig {
       BUTTON_COLOR.SILVER,
       BUTTON_COLOR.BLACK,
       BUTTON_COLOR.WHITE,
+      BUTTON_COLOR.DEFAULT_BLUE_LIGHT_BLUE,
+      BUTTON_COLOR.DEFAULT_BLUE_DARK_BLUE,
     ],
 
     logoColors: {

Diff for: src/ui/buttons/props.js

@@ -648,7 +648,8 @@ export function normalizeButtonStyle(
   }
 
   props = props || getDefaultButtonPropsInput();
-  const { fundingSource } = props;
+  const { fundingSource, experiment } = props;
+  const { isPaypalRebrandEnabled, defaultBlueButtonColor } = experiment;
 
   const FUNDING_CONFIG = getFundingConfig();
   const fundingConfig =
@@ -677,6 +678,12 @@ export function normalizeButtonStyle(
     borderRadius,
   } = style;
 
+  const isColorUnset = color === "" || color === undefined;
+
+  if (isPaypalRebrandEnabled && isColorUnset) {
+    color = defaultBlueButtonColor;
+  }
+
   // $FlowFixMe
   if (tagline === "false") {
     // $FlowFixMe