test: add blend_alpha and prefix extmark coverage

This commit is contained in:
Barrett Ruth 2026-03-08 14:34:56 -04:00
parent 23391556fd
commit ba51e7a556
Signed by: barrett
GPG key ID: A6C96C9349D2FC81
3 changed files with 113 additions and 7 deletions

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@ -241,11 +241,13 @@ Configuration is done via `vim.g.diffs`. Set this before the plugin loads:
Only visible if line numbers are enabled.
{blend_alpha} (number, default: 0.6)
Alpha value for character-level blend intensity.
Controls how strongly changed characters stand
out from the line-level background. Must be
between 0 and 1 (inclusive). Higher values
produce more vivid character-level highlights.
Alpha value for diff line background intensity.
Controls how strongly diff lines (adds/deletes)
stand out from the editor background. Intra-line
highlights use alpha + 0.3 (capped at 1.0) for
extra contrast. Must be between 0 and 1
(inclusive). Higher values produce more vivid
backgrounds.
{context} (table, default: see below)
Syntax parsing context options.