Results 5 issues of valtron

They were being assigned to `.color`, which is never used. Also uncommented the setting of the colorspace, no idea why it was commented out?

Example: // less @col: pink; #foo { background-color: @col \* 0.8; } // output css #foo { background-color: pink 0.8; } // expected css #foo { background-color: #CC99A2; }

`np.int is int` and it was deprecated in numpy 1.20: https://numpy.org/doc/1.20/release/1.20.0-notes.html#deprecations

Uses `Path.as_uri` to create file URIs from in all the places that I found.

## Introduction When adding a submit handler to a form, one often wants to get the data that was submitted: ``` form.addEventListener('submit', e => { const data = new FormData(e.target);...