Hamburger customization not possible with current mixin

[gopumon]

Prelude

This is about the Bulma CSS framework I'm using Bulma version [0.4.3] My browser is: Chrome Version 59.0.3071.115 (Official Build) (64-bit) OSX 10.12.5

Issue

I have a navigation bar with brand color for a client website. I managed to change it by

$navbar-background: $turquoise !default;
$navbar-item: $white !default;

But the hamburger mixin is using $text as defaut state color, $background as hover color and $link as active state color.

it is much helpful if hamburger mixin takes these colors as parameters.

[rafaberaldo]

I would love if we could also set the width of the spans, I think it's too thin (a variable would do it).