message: Aligned left/right icon with title text
  Fix for issue (Header buttons not vertically aligned with header title)
diff: @@ -174,17 +174,25 @@ export default (variables = variable) => {
  marginLeft: -3,
  "NativeBase.Icon": {
  color: variables.toolbarBtnColor,
  - fontSize: variables.iconHeaderSize,
  - marginTop: 2,
  + fontSize:
  + platform === "ios" && variables.platformStyle !== "material"
  + ? variables.iconHeaderSize - 3
  + : variables.iconHeaderSize - 2,
  + marginTop: 0,
  marginRight: 2,
  - marginLeft: 2
  + marginLeft: 2,
  + paddingtop: 0
  },
  "NativeBase.IconNB": {
  color: variables.toolbarBtnColor,
  - fontSize: variables.iconHeaderSize,
  - marginTop: 2,
  + fontSize:
  + platform === "ios" && variables.platformStyle !== "material"
  + ? variables.iconHeaderSize - 3
  + : variables.iconHeaderSize - 2,
  + marginTop: 0,
  marginRight: 2,
  - marginLeft: 2
  + marginLeft: 2,
  + paddingTop: 0
  },
  "NativeBase.Text": {
  color: variables.toolbarBtnTextColor,
  @@ -272,22 +280,24 @@ export default (variables = variable) => {
  "NativeBase.Icon": {
  color: variables.toolbarBtnColor,
  fontSize:
  - platform === "ios"
  - ? variables.iconHeaderSize - 6
  + platform === "ios" && variables.platformStyle !== "material"
  + ? variables.iconHeaderSize - 3
  : variables.iconHeaderSize - 2,
  - marginTop: 2,
  + marginTop: 0,
  marginLeft: 2,
  - marginRight: 2
  + marginRight: 2,
  + paddingTop: 0
  },
  "NativeBase.IconNB": {
  color: variables.toolbarBtnColor,
  fontSize:
  - platform === "ios"
  - ? variables.iconHeaderSize - 6
  + platform === "ios" && variables.platformStyle !== "material"
  + ? variables.iconHeaderSize - 3
  : variables.iconHeaderSize - 2,
  - marginTop: 2,
  + marginTop: 0,
  marginLeft: 2,
  - marginRight: 2
  + marginRight: 2,
  + paddingTop: 0
  },
  "NativeBase.Text": {
  color: variables.toolbarBtnTextColor,
  