How to use 16-colours mode in Neovim?

[lunacookies]

Hi, I see that recently Solarized 8 was updated so that the 16-colour mode is activated using set t_Co=16, rather than let g:solarized_use16 = 1. However, Neovim does not support t_* settings. Is there anyway to use the 16-colour mode in Neovim?

Thanks.

[lifepillar]

If there is no way for NeoVim to determine the number of colors of the underlying terminal, I may reinstate the old option.

But I'd like to understand: did they replace t_Co with something else? If not, what is the rationale to remove the setting (a link would be fine)?

[lifepillar]

Using NeoVim v0.4.0 I get:

:echo exists('&t_Co')
1
:echo &t_Co
256
:set t_Co=16
:echo &t_Co
256

So, it seems like they made the setting read-only. And removed the documentation about it.

[lifepillar]

I have played with Neovim a bit, and now things are clear to me: Neovim ignores t_Co and similar settings and detects terminal features automatically. Apparently, you cannot even lie to Neovim by setting the TERM environment variable.

I guess you want exact Solarized colors in terminals not supporting millions of colors. To achieve that in Neovim, I will need to reintroduce the old option, because Neovim always sets t_Co to 256.

[lunacookies]

Thank you so much!