As for how dominion shades work, I recommend we set up a consistent scheme, but basically my idea is to adjust Luminosity and Saturation down to make them washed-out (but dark, not pale) versions of the home country colour.
I remember once either you or someone else posting a little colour scheme proposal with 4 colours:
Britain and direct colonies,
countries in personal union/dominions,
protectorates/protected states
and princely states
But as it was, weren't princely states really just protected states?
And then by convention we've had territories (such as Northern Territory and the Northwest Territories) also being shaded differently.
Also by convention we have sometimes had occupation being shown as a slightly lighter shade than the occupying power's colour even though originally I think the occupation was shown in the same colour for simplification and following the Centennia Historical Atlas convention....but perhaps, (ONLY if possible of course) we should have two occupation conventions:
- occupation with the intention to annex (e.g. British troops landing in Haiti during the Haitian Revolution and Britain declaring a colony of Saint Dominque with the clear intention that had they won western Hispaniola would have become a British colony...or Japanese occupation of large parts of the Pacific and eastern Asia during World War II)
- occupation without the intention to annex (e.g. Soviet occupation of Romania towards the end of World War II, American occupation of Cuba from 1906 to 1909)
So in all we could have the following colours/conventions:
- Power and it's colonies and occupation with intent to annex
- Personal Union with Power/Dominion of Power (in the case of say the Netherlands and Britain in the 1690s they would each keep their colour but maybe have the other's personal union colour either in outline or in diagonal stripes?)
- Protectorates and Protected States (including Princely States)
- Territories within a federal system, including within a dominion
- Occupation without intent to annex
- De jure situation or claim by outlining of power's direct colour with other colour filled within
- De facto situation or influence (other than protectorates and protected states which have a legal basis) by outlining in independent colour but with power's colour filled within