@Meyerweb Are the variables mixed with length (and so on...) ones? Are they named consistently so that you can extract just those related to the palette?

For example, this would suck to automate:

```
$background-1: gainsboro;
$width-ico: 80px;
$text-main: #222;
$shadow-c: rgba(0, 0, 0, .2)
```

But for the case when they're named consistently:

```
$back-c: gainsboro;
$width-ico: 80px;
$text-main-c: #222;
$shadow-c: rgba(0, 0, 0, .2)
```

You can automate creating a list of the dark versions.

@Meyerweb This would also allow you to have a list of excludes (for example, you want to exclude the shadow from the list).

And in that case, you'd end up having something like:

```
$back-c: gainsboro;
$text-main-c: #222;
$shadow-c: rgba(0, 0, 0, .2);

$back-c-dark: #222;
$text-main-c-dark: #eee;
```

Then in the code, I would use a Sass function that generates a `color-mix()` (for better support) or `light-dark()` from the desired base variable name and a custom property indicating the theme.