chore: customize github dark dimmed theme

lua/plugins/dashboard.lua

@@ -79,5 +79,8 @@ return {
       button.desc = button.desc .. string.rep(" ", 43 - #button.desc)
       button.key_format = "  %s"
     end
+
+    vim.api.nvim_set_hl(0, "DashboardHeader", { fg = "#b39cd0", bold = true })
+    vim.api.nvim_set_hl(0, "DashboardFooter", { fg = "#b39cd0", bold = true })
   end,
 }

lua/plugins/themes.lua

@@ -5,7 +5,192 @@ return {
     lazy = false,
     priority = 1000,
     config = function()
-      require("github-theme").setup()
+      require("github-theme").setup({
+        palettes = {
+          github_dark_dimmed = {
+            canvas = {
+              default = "#282c34",
+              overlay = "#2d333b",
+              inset   = "#1c2128",
+              subtle  = "#2d333b",
+            },
+
+            scale = {
+              gray = {
+                "#cdd9e5", "#adbac7", "#909dab", "#768390",
+                "#636e7b", "#545d68", "#444c56", "#373e47",
+                "#2d333b", "#282c34",
+              },
+              white = "#cdd9e5",
+              black = "#1c2128",
+              blue = {
+                "#dcccf0", "#c8b8e0", "#b39cd0", "#a088c0",
+                "#8a6fb0", "#7058a0", "#584088", "#403070",
+                "#302058", "#201040",
+              },
+              green = {
+                "#a8e8e0", "#8dd8d0", "#7ec8c0", "#5cb8b0",
+                "#4aa098", "#388880", "#267068", "#1c5850",
+                "#124038", "#082820",
+              },
+              yellow = {
+                "#eee8b0", "#ddd491", "#d4c87a", "#c4b860",
+                "#b0a450", "#9c9040", "#887830", "#746820",
+                "#605810", "#4c4800",
+              },
+              orange = {
+                "#f5cba0", "#e8b080", "#d99560", "#cc6b2c",
+                "#b05a20", "#944818", "#783810", "#602808",
+                "#481800", "#301000",
+              },
+              red = {
+                "#f0b0b0", "#e08585", "#d47373", "#c06060",
+                "#a85050", "#944040", "#803030", "#6c2020",
+                "#581010", "#440000",
+              },
+              purple = {
+                "#dcccf0", "#c8b0e8", "#b39cd0", "#a088c0",
+                "#8a6fb0", "#7058a0", "#584088", "#403070",
+                "#302058", "#201040",
+              },
+              pink = {
+                "#f0c0d8", "#e0a8c0", "#d090b0", "#c96198",
+                "#ae4c82", "#983868", "#802850", "#6c1840",
+                "#580830", "#440020",
+              },
+              coral = {
+                "#f0c0b8", "#e0a098", "#d08078", "#c06058",
+                "#a85048", "#944038", "#803028", "#6c2018",
+                "#581008", "#440000",
+              },
+            },
+
+            orange  = "#cc6b2c",
+            black   = { base = "#282c34", bright = "#2d333b" },
+            gray    = { base = "#636e7b", bright = "#768390" },
+            blue    = { base = "#b39cd0", bright = "#c8b8e0" },
+            green   = { base = "#7ec8c0", bright = "#8dd8d0" },
+            magenta = { base = "#a088c0", bright = "#b39cd0" },
+            pink    = { base = "#c96198", bright = "#d47aa8" },
+            red     = { base = "#d47373", bright = "#e08585" },
+            white   = { base = "#cdd9e5", bright = "#e0e4e8" },
+            yellow  = { base = "#d4c87a", bright = "#ddd491" },
+            cyan    = { base = "#76e3ea", bright = "#b3f0ff" },
+
+            fg = {
+              default     = "#cdd9e5",
+              muted       = "#8b949e",
+              subtle      = "#636e7b",
+              on_emphasis = "#cdd9e5",
+            },
+
+            border = {
+              default = "#444c56",
+              muted   = "#373e47",
+              subtle  = "#3c4048",
+            },
+
+            neutral = {
+              emphasis_plus = "#545d68",
+              emphasis      = "#545d68",
+              muted  = "#444a53",
+              subtle = "#2f333c",
+            },
+
+            accent = {
+              fg       = "#b39cd0",
+              emphasis = "#a088c0",
+              muted    = "#605972",
+              subtle   = "#3d3d4b",
+            },
+
+            success = {
+              fg       = "#7ec8c0",
+              emphasis = "#4aa098",
+              muted    = "#4a6a6c",
+              subtle   = "#354349",
+            },
+
+            attention = {
+              fg       = "#d4c87a",
+              emphasis = "#b0a450",
+              muted    = "#6d6a50",
+              subtle   = "#42433f",
+            },
+
+            severe = {
+              fg       = "#cc6b2c",
+              emphasis = "#a85a20",
+              muted    = "#6a4531",
+              subtle   = "#413533",
+            },
+
+            danger = {
+              fg       = "#d47373",
+              emphasis = "#a85050",
+              muted    = "#6d484d",
+              subtle   = "#42373d",
+            },
+
+            open = {
+              fg       = "#7ec8c0",
+              emphasis = "#4aa098",
+              muted    = "#4a6a6c",
+              subtle   = "#354349",
+            },
+
+            done = {
+              fg       = "#a088c0",
+              emphasis = "#8a6fb0",
+              muted    = "#58516c",
+              subtle   = "#3a3a49",
+            },
+
+            closed = {
+              fg       = "#d47373",
+              emphasis = "#a85050",
+              muted    = "#6d484d",
+              subtle   = "#42373d",
+            },
+
+            sponsors = {
+              fg       = "#c96198",
+              emphasis = "#ae4c82",
+              muted    = "#68415c",
+              subtle   = "#403443",
+            },
+          },
+        },
+
+        specs = {
+          github_dark_dimmed = {
+            syntax = {
+              bracket     = "fg1",
+              builtin0    = "#a088c0",
+              builtin1    = "#d47373",
+              builtin2    = "#d4c87a",
+              comment     = "#636e7b",
+              conditional = "#d47373",
+              const       = "#d4c87a",
+              dep         = "#c06060",
+              field       = "#cdd9e5",
+              func        = "#a088c0",
+              ident       = "fg1",
+              keyword     = "#d47373",
+              number      = "#d4c87a",
+              operator    = "#d4c87a",
+              param       = "fg1",
+              preproc     = "#d47373",
+              regex       = "#76e3ea",
+              statement   = "#d47373",
+              string      = "#b39cd0",
+              type        = "#7ec8c0",
+              tag         = "#7ec8c0",
+              variable    = "fg1",
+            },
+          },
+        },
+      })
     end
   },
   {