ksubileau/color-thief-php integration

Problem/Motivation

spiral logic ->image 'background' in most situations would be 'white' (broken/null image) and ground up ought to have black text.

Steps to reproduce

Proposed resolution

https://github.com/ksubileau/color-thief-php
https://www.drupal.org/project/color_thief → -> an interesting reminder that we could perhaps help with related over-text colour situations.

Remaining tasks

User interface changes

API changes

Data model changes