feat(extras): add prism colorscheme

lua/astrotheme/extras/init.lua

@@ -23,6 +23,7 @@ M.extras = {
   kitty            = { ext = "conf", url = "https://sw.kovidgoyal.net/kitty/conf.html", label = "Kitty" },
   lazygit          = { ext = "yml", url = "https://github.com/jesseduffield/lazygit", label = "Lazygit" },
   lua              = { ext = "lua", url = "https://www.lua.org", label = "Lua Table for testing" },
+  prism            = { ext = "js", url = "https://prismjs.com", label = "Prism" },
   slack            = {ext = "txt", url = "https://slack.com", label = "Slack"},
   spotify_player   = {ext = "toml", url = "https://github.com/aome510/spotify-player", label = "Spotify Player"},
   st               = {ext = "h", url = "https://st.suckless.org/", label = "simple terminal"},

lua/astrotheme/extras/prism.lua

@@ -0,0 +1,65 @@
+local util = require "astrotheme.extras"
+
+local M = {}
+
+--- @param colors AstroThemePalette
+function M.generate(colors)
+  return util.template(
+    [[
+module.exports =  {
+  plain: {
+    color: "${syntax.text}",
+    backgroundColor: "${ui.base}",
+  },
+  styles: [
+    {
+      types: ["prolog", "builtin"],
+      style: {
+        color: "${syntax.red}",
+      },
+    },
+    {
+      types: ["function", "symbol", "tag"],
+      style: {
+        color: "${syntax.blue}",
+      },
+    },
+    {
+      types: ["punctuation", "variable"],
+      style: {
+        color: "${syntax.text}",
+      },
+    },
+    {
+      types: ["string", "char", "selector"],
+      style: {
+        color: "${syntax.green}",
+      },
+    },
+    {
+      types: ["keyword", "operator"],
+      style: {
+        color: "${syntax.purple}",
+      },
+    },
+    {
+      types: ["constant", "boolean", "attr-name"],
+      style: {
+        color: "${syntax.yellow}",
+      },
+    },
+    {
+      types: ["comment"],
+      style: {
+        color: "${syntax.comment}",
+        fontStyle: "italic",
+      },
+    },
+  ],
+};
+]],
+    colors
+  )
+end
+
+return M