fix(radio): button group color

packages/common/Radio/src/RadioButton.vue

@@ -3,12 +3,18 @@
     class="n-radio-button"
     :class="{
       'n-radio-button--disabled': disabled,
-      'n-radio-button--checked': checked
+      'n-radio-button--checked': checked,
+
     }"
     @click="handleClick"
   >
     <div class="n-radio-button__border-mask" />
-    <div class="n-radio-button__label">
+    <div
+      class="n-radio-button__label"
+      :class="{
+        'simulate-transparent-text': checked
+      }"
+    >
       <slot />
     </div>
   </div>

packages/common/Radio/src/RadioGroup.vue

@@ -1,5 +1,7 @@
 <script>
 
+import texttransparentable from '../../../mixins/texttransparentable'
+
 function mapSlot (h, defaultSlot, currentComponent) {
   /**
    * connect current component's v-model to child instance
@@ -62,6 +64,7 @@ function mapSlot (h, defaultSlot, currentComponent) {
 
 export default {
   name: 'NRadioGroup',
+  mixins: [texttransparentable],
   props: {
     value: {
       type: [Boolean, String, Number],