The difference in contrast seems pretty small to me.

WontFixing, but ->sgabriel in case he wants to reopen.

Re-opening for now for visibility. Is there an existing bug and/or a link to an a11y review that approved this contrast change?

Subjectively, the contrast ratio looks really low to me on my monitor.

Just want to add this only affects GTK+, which is the default theme on Ubuntu.

I have three chrome:// pages bookmarked (bookmarks,settings,extensions) in between the Spaces and My Saves icons. They are almost invisible. See attached screenshots.

Google Chrome	52.0.2743.0 (Official Build) dev (32-bit)
Revision	2b3ae3b8090361f8af5a611712fc1a5ab2de53cb-refs/heads/master@{#394939}
Platform	8350.2.0 (Official Build) dev-channel veyron_minnie

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Re: #4. Thanks for submitting, it should be in a separate bug however. Created https://bugs.chromium.org/p/chromium/issues/detail?id=616131

Moving this nonessential bug to the next milestone.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

In 54.0.2840.50 this is worse yet.

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This bug should be un-merged, as the other bug is very different. Problem is still in M57.

I'm not actually convinced the bug is different.  I think both are about alpha-blending of background tabs.

This is yet slighlty worse in M60.

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The screenshot in comment 11 definitely seems too low-contrast to me.

I don't know what the status is here, whether this is Linux-specific, or whether the dupe to  bug 615179  was correct.  But if this doesn't get reopened nothing will happen, and I feel like something needs to happen.

​Thanks for reopening. I think the recent regression might've been caused
by the switch from GTK2 to GTK3 in M59. (I've skipped it, so don't know.)

This works, but the actual problem is elsewhere.

diff --git a/chrome/browser/ui/libgtkui/gtk_ui.cc b/chrome/browser/ui/libgtkui/gtk_ui.cc
index 7df1d0c..1ea8a62 100644
--- a/chrome/browser/ui/libgtkui/gtk_ui.cc
+++ b/chrome/browser/ui/libgtkui/gtk_ui.cc
@@ -876,7 +876,7 @@ void GtkUi::LoadGtkValues() {
   colors_[ThemeProperties::COLOR_TAB_TEXT] = tab_text_color;
   colors_[ThemeProperties::COLOR_BOOKMARK_TEXT] = tab_text_color;
   colors_[ThemeProperties::COLOR_BACKGROUND_TAB_TEXT] =
-      color_utils::BlendTowardOppositeLuma(tab_text_color, 50);
+      color_utils::BlendTowardOppositeLuma(tab_text_color, 25);
 
   SkColor location_bar_border = GetBorderColor("GtkEntry#entry");
   if (SkColorGetA(location_bar_border))

This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue.

Sorry for the inconvenience if the bug really should have been left as Available.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

I suspect this is better in Refresh.

Thanks @pkasting, this is much, much better.

Indeed it is.