bug#19753: 25.0.50; html rendering

[Eli Zaretskii]

> Date: Sat, 07 Feb 2015 07:43:29 -0500
> From: Richard Stallman <rms@gnu.org>
> CC: 19753@debbugs.gnu.org
> 
> (display-color-cells) returns 8

Then I think that's what Emacs uses.

> but it is clear that it really supports a lot more colors than that.

How is it clear?  Can you tell what led you to that conclusion?

> Maybe the bug is in display-color-cells.

In the TTY case, what display-color-cells returns is what the
terminfo/termcap interface tells it.  Maybe there's some bug in the
code which determines that, which is around line 4120 in term.c.
Could you please step through that with a debugger, and see if
something goes wrong there during the terminal initialization phase?