[RN] Improve app-settings back button style

react/features/app-settings/components/BackButton.native.js

@@ -4,15 +4,9 @@ import React, { Component } from 'react';
 import { TouchableOpacity } from 'react-native';
 
 import { Icon } from '../../base/font-icons';
-import { Platform } from '../../base/react';
 
 import styles from './styles';
 
-/**
- * The icon glyph to be used on a specific platform.
- */
-const BACK_ICON = Platform.OS === 'android' ? 'arrow_back' : 'navigate_before';
-
 /**
  * The type of the React {@code Component} props of {@link BackButton}
  */
@@ -30,7 +24,7 @@ type Props = {
 };
 
 /**
- * A component rendering a back button that looks native on both platforms.
+ * A component rendering a back button.
  */
 export default class BackButton extends Component<Props> {
     /**
@@ -45,7 +39,7 @@ export default class BackButton extends Component<Props> {
                 accessibilityLabel = { 'Back' }
                 onPress = { this.props.onPress }>
                 <Icon
-                    name = { BACK_ICON }
+                    name = { 'arrow_back' }
                     style = { [
                         styles.backIcon,
                         this.props.style

react/features/app-settings/components/styles.js

@@ -1,5 +1,3 @@
-import { Platform } from 'react-native';
-
 import {
     BoxModel,
     ColorPalette,
@@ -19,19 +17,13 @@ const TEXT_SIZE = 17;
 export default createStyleSheet({
 
     /**
-     * The platform specific back button style.
+     * The back button style.
      */
     backIcon: {
         alignSelf: 'center',
-        ...Platform.select({
-            android: {
-                fontSize: 24,
-                padding: 8
-            },
-            ios: {
-                fontSize: 30
-            }
-        })
+        fontSize: 26,
+        padding: 8,
+        paddingRight: 22
     },
 
     /**
@@ -48,7 +40,8 @@ export default createStyleSheet({
      */
     fieldLabelContainer: {
         alignItems: 'center',
-        flexDirection: 'row'
+        flexDirection: 'row',
+        marginRight: 5
     },
 
     /**
@@ -92,7 +85,7 @@ export default createStyleSheet({
      */
     headerTitle: {
         color: ColorPalette.white,
-        fontSize: 24
+        fontSize: 22
     },
 
     /**
@@ -106,8 +99,7 @@ export default createStyleSheet({
      * The back button style on the settings screen.
      */
     settingsBackButton: {
-        color: ColorPalette.white,
-        fontSize: 25
+        color: ColorPalette.white
     },
 
     /**