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update tab outlines

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This commit is contained in:
Alexander Frick 2023-10-16 08:05:54 -05:00
parent b2b027c4ba
commit ffcc6c58e4
3 changed files with 6 additions and 14 deletions
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0
LICENSE → LICENSE.md
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8
src/chrome/browser/thorium_flag_entries.h
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@ -21,10 +21,10 @@
"Enable High Contrast Mode",
"Enables high contrast mode for all Thorium instances.",
kOsAll, SINGLE_VALUE_TYPE("force-high-contrast")},
{"tab-outlines-in-low-contrast-themes",
"Tab Outlines in Low Contrast Themes",
"Expands the range of situations in which tab outline strokes are displayed, improving accessiblity in dark and incognito mode.",
kOsAll, SINGLE_VALUE_TYPE("tab-outlines-in-low-contrast-themes")},
{"force-enable-tab-outlines",
"Force Enable Tab Outlines",
"Force enables tab outline strokes, improving accessiblity in dark mode, incognito mode, and low contrast themes.",
kOsAll, SINGLE_VALUE_TYPE("force-enable-tab-outlines")},
{"prominent-dark-mode-active-tab-title",
"Prominent Dark Mode Active Tab Titles",
"Makes the active tab title bolder in dark mode so that it is easier to identify.",

12
src/chrome/browser/ui/views/tabs/tab_strip.cc
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@ -1197,17 +1197,9 @@ bool TabStrip::ShouldDrawStrokes() const {
// Don't want to have to run a full feature query every time this function is
// called.
static const bool tab_outlines_in_low_contrast = base::CommandLine::ForCurrentProcess()->HasSwitch("tab-outlines-in-low-contrast-themes");
static const bool force_enable_tab_outlines =
base::CommandLine::ForCurrentProcess()->HasSwitch("force-enable-tab-outlines");
if (tab_outlines_in_low_contrast) {
constexpr float kMinimumAbsoluteContrastForOutlines = 0.2f;
const float background_luminance =
color_utils::GetRelativeLuminance(background_color);
const float frame_luminance =
color_utils::GetRelativeLuminance(frame_color);
const float contrast_difference =
std::fabs(background_luminance - frame_luminance);
if (contrast_difference < kMinimumAbsoluteContrastForOutlines)
return true;
}