feat: add mellow.nvim theme plugin with lualine support (#1188)

Co-authored-by: Ching Pei Yang <59727193+horriblename@users.noreply.github.com>

docs/release-notes/rl-0.8.md

@@ -578,3 +578,9 @@
 - Update `python` language module to use correct lsp binary.
 - Fix `python` pyright and basedpyright language servers not using default on
   attach behavior.
+
+[critical](https://github.com/critical):
+
+[mellow.nvim]: https://github.com/mellow-theme/mellow.nvim
+
+- Add [mellow.nvim] plugin for vim and lualine theme support

modules/plugins/statusline/lualine/supported_themes.nix

@@ -5,4 +5,5 @@
   "oxocarbon"
   "gruvbox"
   "nord"
+  "mellow"
 ]

modules/plugins/theme/supported-themes.nix

@@ -303,4 +303,13 @@ in {
 
     styles = ["hard" "medium" "soft"];
   };
+
+  mellow = {
+    setup = {transparent ? false, ...}: ''
+      -- Mellow configuration
+      vim.g.mellow_transparent = ${boolToString transparent}
+
+      vim.cmd.colorscheme("mellow")
+    '';
+  };
 }

npins/sources.json

@@ -961,6 +961,19 @@
       "url": "https://github.com/OXY2DEV/markview.nvim/archive/de79a7626d54d7785436105ef72f37ee8fe8fa16.tar.gz",
       "hash": "032i6m9pld1zyhd7lq49dg4qh98w6vmmzqp2f46drhq0ds26hs4h"
     },
+    "mellow": {
+      "type": "Git",
+      "repository": {
+        "type": "GitHub",
+        "owner": "mellow-theme",
+        "repo": "mellow.nvim"
+      },
+      "branch": "main",
+      "submodules": false,
+      "revision": "5cd188489bcc7eb512f0a30581ad972070f8e5cd",
+      "url": "https://github.com/mellow-theme/mellow.nvim/archive/5cd188489bcc7eb512f0a30581ad972070f8e5cd.tar.gz",
+      "hash": "0hjfhwvvlc50rrxscg2lbkip7v5s13yaja0pckhhxfkbz17b5v83"
+    },
     "mind-nvim": {
       "type": "Git",
       "repository": {