I've found altair/vega to not 'feel' declarative as whenever I sit down and try to pass in a json config for basic scenarios... something always gets in the way

I've found altair/vega to not 'feel' declarative as whenever I sit down and try to pass in a json config for basic scenarios... something always gets in the way. GG is composable, so this should work in theory, so I've been curious - it feels close. We have been enjoying Perspective as a more declarative & high-performance flow. Altair/Vega is beautiful though so it was a bummer when we dropped it for a recent project.