Add support for double underline

3 files changed, 5 insertions, 1 deletions

diff --git a/doc/json_ui.asciidoc b/doc/json_ui.asciidoc
index 0fc0378b..63c5f325 100644
--- a/doc/json_ui.asciidoc
+++ b/doc/json_ui.asciidoc
@@ -15,7 +15,7 @@ Kakoune won't be able to parse named parameters in requests.
 Here are the data structures used:
 
 * Color: a string, either a named color, or #rrggbb, or 'default'
-* Attribute: one of {underline, reverse, blink, bold, dim, italic, final_fg, final_bg, final_attr}
+* Attribute: one of {underline, curly_underline, double_underline, reverse, blink, bold, dim, italic, final_fg, final_bg, final_attr}
 * Face { Color fg; Color bg; Array<Attribute> attributes; }
 * Atom { Face face; String contents; }
 * Line : Array of Atom
diff --git a/doc/pages/changelog.asciidoc b/doc/pages/changelog.asciidoc
index a553433a..3a6804e5 100644
--- a/doc/pages/changelog.asciidoc
+++ b/doc/pages/changelog.asciidoc
@@ -6,6 +6,7 @@ released versions.
 == Development version
 
 * Expose env vars that are mentionned in the arguments passed to shell expansions
+* Support for colored double underlines
 
 == Kakoune 2024.05.18
 
diff --git a/doc/pages/faces.asciidoc b/doc/pages/faces.asciidoc
index b7c6ad44..1b9ef468 100644
--- a/doc/pages/faces.asciidoc
+++ b/doc/pages/faces.asciidoc
@@ -33,6 +33,9 @@ attributes::
         *c*:::
             curly underline
             Note: This takes precedence over underline if both are specified.
+        *U*:::
+            double underline
+            Note: This takes precedence over underline and curly underline if also specified.
         *r*:::
             reverse
         *b*:::