setColor public method for Icon styles

[danw-mpl]

I'd like to have a setColor public method on an Icon image associated with a Style so I can make use of traditional style caching approaches with dynamic data.

For example;
myStyle.getImage()?.setColor('rgb(200, 200, 200)')

[ahocevar]

Style caching would be inefficient here, because setColor() would mean to recreate the icon image internally.

There is a style icon cache, it is only very small. You can increase it though: https://openlayers.org/en/latest/apidoc/module-ol_style_IconImageCache-IconImageCache.html#setSize

import { shared as iconCache } from `ol/style/IconImageCache.js`;
iconCache.setSize(1024);

[danw-mpl]

Fair enough. I'm actually using style 'caching' to avoid redrawing the style on every pan/zoom which causes significant declutter flickering.

So ignoring the caching topic, I'd still be interested in a setColor().