linux-kernel - Re: [PATCH] perf/tui: Change default selection background color to yellow

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Message-ID: <20151209134506.GC15864@kernel.org>
Date:	Wed, 9 Dec 2015 10:45:06 -0300
From:	Arnaldo Carvalho de Melo <acme@...radead.org>
To:	Borislav Petkov <bp@...en8.de>
Cc:	Ingo Molnar <mingo@...nel.org>, Jiri Olsa <jolsa@...hat.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf/tui: Change default selection background color to
 yellow

Em Wed, Dec 09, 2015 at 10:55:16AM +0100, Borislav Petkov escreveu:
> Hey acme,
> 
> it seems you've forgotten this one.
> 
> I still need it please :-)

Applying it now, thanks for the reminder.

- Arnaldo
 
> On Thu, Mar 05, 2015 at 11:32:13AM +0100, Ingo Molnar wrote:
> > 
> > Boris reported that 'perf top' is unusable on his default 'black on 
> > white' terminal, which uses (eye friendly) light-grey as a background 
> > color.
> > 
> > The reason is that the TUI cursor for the current selection line uses 
> > HE_COLORSET_SELECTED, and that has a default background color of 
> > 'lightgrey' - which is a common terminal background choice and thus 
> > the colors conflict.
> > 
> > Use yellow as the background color instead: that should be an uncommon 
> > terminal background, yet it's still ergonomic on both black and 
> > white/grey terminals.
> > 
> > [ It would be a better solution to straight out detect color
> >   collisions and resolve them reasonably by converting them to RGB and
> >   calculating color space distances, but I was unable to find
> >   proper documentation for SLtt_get_color_object() to recover the
> >   current color scheme so I gave up ... Yellow works well enough. ]
> > 
> > Reported-by: Borislav Petkov <bp@...en8.de>
> > Cc: Arnaldo Carvalho de Melo <acme@...nel.org>
> > Cc: David Binderman <dcb314@...mail.com>
> > Cc: Jiri Olsa <jolsa@...nel.org>
> > Signed-off-by: Ingo Molnar <mingo@...nel.org>
> > ---
> >  tools/perf/ui/browser.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
> > index 6680fa5cb9dd..688acb94c01f 100644
> > --- a/tools/perf/ui/browser.c
> > +++ b/tools/perf/ui/browser.c
> > @@ -499,7 +499,7 @@ static struct ui_browser_colorset {
> >  		.colorset = HE_COLORSET_SELECTED,
> >  		.name	  = "selected",
> >  		.fg	  = "black",
> > -		.bg	  = "lightgray",
> > +		.bg	  = "yellow",
> >  	},
> >  	{
> >  		.colorset = HE_COLORSET_CODE,
> > 
> 
> -- 
> Regards/Gruss,
>     Boris.
> 
> ECO tip #101: Trim your mails when you reply.
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