Dark Themes on the internet

So, I have noticed that many websites don’t like dark themes when inputing text. A lot of them will specify either a color for the text input, or one for the background, but not both. When they do this it often conflicts with the theming. Anyone know of a way around this (without changing to a light theme)?

Thanks
~ShadowBane

I get a similar problem with my email - my solution is to simply hightlight the text so I can read it.

works, but it would be cool if there was a way that I could get it to stay visible…