[host] Changing a color table value above 16 does not update the color of other cells with that index #1223
Description
From MSFT:20105972
in bash:
printf "\033[38;5;130mHello World"
printf "\033]4;130;rgb:ff/ff/00\07"
The first "Hello World" should appear in a brownish color. Then, after executing the second command, the value of the [130] entry should be updated to yellow. The hello world text should also be yellow now.
We could achieve this by allowing for TextColor's to have up to 256 stored in their _index member. I'm not sure we'd need more than that - though LookupColor might be confused by that, so we'd need to maybe add a separate is256Index value to the type enum.