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-rw-r--r--src/nvim/api/vim.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/nvim/api/vim.c b/src/nvim/api/vim.c
index 3ae944de4d..baf0bed49a 100644
--- a/src/nvim/api/vim.c
+++ b/src/nvim/api/vim.c
@@ -1421,6 +1421,7 @@ void nvim_chan_send(Integer chan, String data, Error *err)
/// - "none" No border. This is the default
/// - "single" a single line box
/// - "double" a double line box
+/// - "shadow" a drop shadow effect by blending with the background.
/// If it is an array it should be an array of eight items or any divisor of
/// eight. The array will specifify the eight chars building up the border
/// in a clockwise fashion starting with the top-left corner. As, an
@@ -1431,6 +1432,9 @@ void nvim_chan_send(Integer chan, String data, Error *err)
/// [ "/", "-", "\\", "|" ]
/// or all chars the same as:
/// [ "x" ]
+/// An empty string can be used to turn off a specific border, for instance:
+/// [ "", "", "", ">", "", "", "", "<" ]
+/// will only make vertical borders but not horizontal ones.
/// By default `FloatBorder` highlight is used which links to `VertSplit`
/// when not defined. It could also be specified by character:
/// [ {"+", "MyCorner"}, {"x", "MyBorder"} ]