I personally prefer light themes everywhere, both in IDEs and in the terminal. I thought that just choosing my own color scheme for 0-15 would give me the color pallette that I prefer, but because app developers like you for some reason decided that you know better what colors do I prefer, this is actually not enough. I also have to configure each TUI application separately to have the color scheme that I like.
And I do not understand why people do it. Like, why would you deliberately break the universal customization system and force users to use your own, specific to your app?
Honesty, each time I encounter an app that uses 16-255 colors, I feel like someone just violated my personal space and intruded into my chosen color pallette with their own colors that don't fit.