Tweak greens (#9177)

* tweak greens

* undo test code

src/screens/Search/modules/ExploreTrendingTopics.tsx

@@ -194,7 +194,7 @@ function TrendingIndicator({type}: {type: TrendingIndicatorType | 'skeleton'}) {
     case 'new': {
       Icon = TrendingIcon
       text = _(msg`New`)
-      color = t.palette.positive_700
+      color = t.palette.positive_600
       backgroundColor = t.palette.positive_50
       break
     }

src/screens/Settings/components/ChangeHandleDialog.tsx

@@ -636,7 +636,7 @@ function SuccessMessage({text}: {text: string}) {
           a.rounded_full,
           a.align_center,
           a.justify_center,
-          {backgroundColor: t.palette.positive_600},
+          {backgroundColor: t.palette.positive_500},
         ]}>
         <CheckIcon fill={t.palette.white} size="xs" />
       </View>

src/screens/Signup/StepHandle/index.tsx

@@ -169,7 +169,7 @@ export function StepHandle() {
             {isHandleAvailable?.available && (
               <CheckIcon
                 testID="handleAvailableCheck"
-                style={[{color: t.palette.positive_600}, a.z_20]}
+                style={[{color: t.palette.positive_500}, a.z_20]}
               />
             )}
           </TextField.Root>