Allow using other icons not only arrow

[BreahnaDavid]

I need to use a magnifier instead of arrow at the right of select-input.
So i hid through css select Select-arrow then spend time to align
bootstrap icon instead of arrow ( fa fa-search fa-lg). It would be very useful if we can pass own class instead ofSelect-arrow`.

I want to start working on it, if it is possible.
Thank you

[bvaughn]

Added support via PR #1191. This can be done by specifying your own renderer (in a similar way as optionRenderer, menuRenderer, etc.):

function arrowRenderer () {
  return (
    <span>+</span>
  );
}

function render () {
  return (
    <Select
      arrowRenderer={arrowRenderer}
      {...otherProps}
    />
  );
}

[topher515]

If anyone gets here via google, note that after v2.0.0, arrowRenderer no longer exists and instead you use "components" system to make this change.

See the "Dropdown Indicator" example at https://react-select.com/components#replaceable-components