[xp84]

Honestly, when people are making use of CSS to "reach into" the svg dynamically, or like your example, to color it dynamically, I'm not opposed to the strategy.

99% of the inline <svg> usages I see are people using js includes to inline an SVG which is itself stored in a .jsx file. This is just as lazy and wasteful as it would be if Styled Components were built not to generate classnames and a single stylesheet, but instead with all the rules simply inlined in style attributes on every element.