[gtk/wip/jimmac/hc-dim-label] HC: special case .dim-label

[Jakub Steiner <jimmac src gnome org>]

commit fd00aa98eaf958fb9c868eed71014e9b6a0706b7
Author: Jakub Steiner <jimmac gmail com>
Date:   Wed Jan 6 12:46:35 2021 +0100

    HC: special case .dim-label
    
    Fixes https://gitlab.gnome.org/GNOME/gtk/-/issues/3507

 gtk/theme/Adwaita/_colors.scss         | 1 +
 gtk/theme/Adwaita/_common.scss         | 2 +-
 gtk/theme/HighContrast/_colors-hc.scss | 2 ++
 3 files changed, 4 insertions(+), 1 deletion(-)
---
diff --git a/gtk/theme/Adwaita/_colors.scss b/gtk/theme/Adwaita/_colors.scss
index 958162c6f2..825b13125b 100644
--- a/gtk/theme/Adwaita/_colors.scss
+++ b/gtk/theme/Adwaita/_colors.scss
@@ -71,3 +71,4 @@ $switch_bg_color: $selected_bg_color;
 $switch_borders_color: if($variant == 'light',darken($switch_bg_color,15%),darken($switch_bg_color,30%));
 $focus_border_color: if($variant == 'light', transparentize($selected_bg_color, 0.5), 
transparentize($selected_bg_color, 0.3));
 $alt_focus_border_color: if($variant == 'light', transparentize(white, 0.2), transparentize(white,0.7));
+$dim_label_opacity: 0.55;
diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index c61c6a8f23..24e0ab87d3 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -180,7 +180,7 @@ label {
 }
 
 .dim-label {
-  opacity: 0.55;
+  opacity: $dim_label_opacity;
   text-shadow: none;
 }
 
diff --git a/gtk/theme/HighContrast/_colors-hc.scss b/gtk/theme/HighContrast/_colors-hc.scss
index 3533b6e90b..b91e12ca38 100644
--- a/gtk/theme/HighContrast/_colors-hc.scss
+++ b/gtk/theme/HighContrast/_colors-hc.scss
@@ -20,3 +20,5 @@ $insensitive_borders_color: mix($borders_color, $bg_color, 80%);
 //focus rings
 $focus_border_color: if($variant == 'light', transparentize($selected_bg_color, 0.2), transparentize(white, 
0.4));
 $alt_focus_border_color: if($variant == 'light', white, transparentize(white,0.4));
+
+$dim_label_opacity: 0.9;