diff --git a/bin/leetcode b/bin/leetcode
index 19bb1e35..beb950c6 100755
--- a/bin/leetcode
+++ b/bin/leetcode
@@ -1,3 +1,3 @@
-#!/usr/bin/env node
+#!/usr/bin/env node --no-warnings
 
 require('../lib/cli').run();
diff --git a/colors/dracula.json b/colors/dracula.json
new file mode 100644
index 00000000..ef32d09e
--- /dev/null
+++ b/colors/dracula.json
@@ -0,0 +1,11 @@
+{
+    "black":   "#282a36",
+    "blue":    "#6272a4",
+    "cyan":    "#8be9fd",
+    "gray":    "#44475a",
+    "green":   "#50fa7b",
+    "magenta": "#bd93f9",
+    "red":     "#ff5555",
+    "white":   "#f8f8f2",
+    "yellow":  "#ffb86c"
+}
diff --git a/lib/commands/show.js b/lib/commands/show.js
index 93f643e2..022a4403 100644
--- a/lib/commands/show.js
+++ b/lib/commands/show.js
@@ -96,10 +96,11 @@ function genFileName(problem, opts) {
 }
 
 function showProblem(problem, argv) {
+  const path = require('path');
   const taglist = [problem.category]
     .concat(problem.companies || [])
     .concat(problem.tags || [])
-    .map(x => h.badge(x, 'blue'))
+    .map(x => h.badge(x, 'gray'))
     .join(' ');
   const langlist = problem.templates
     .map(x => h.badge(x.value, 'yellow'))
@@ -169,11 +170,13 @@ function showProblem(problem, argv) {
   if (problem.totalSubmit)
     log.printf('* Total Submissions: %s', problem.totalSubmit);
   if (problem.testable && problem.testcase)
+    problem.testcase = problem.testcase.replace(/\n/g, ' ')
     log.printf('* Testcase Example:  %s', chalk.yellow(util.inspect(problem.testcase)));
   if (filename)
-    log.printf('* Source Code:       %s', chalk.yellow.underline(filename));
+    log.printf('* Source Code:       %s', chalk.gray.underline(path.basename(filename)));
 
   log.info();
+  problem = core.formatProblem(problem, {lang: argv.lang});
   log.info(problem.desc);
 }
 
diff --git a/lib/commands/stat.js b/lib/commands/stat.js
index 44cc72dc..3b8c4a71 100644
--- a/lib/commands/stat.js
+++ b/lib/commands/stat.js
@@ -168,7 +168,7 @@ function showCal(problems) {
     const idx = now.diff(d, 'days');
 
     const j = (N_WEEKS - idx / N_WEEKDAYS + 1) * 2;
-    if (j >= 0) buf.write(MONTHS[d.month()], j);
+    if (j >= 0) buf.write(MONTHS[d.month()], ~~j);
   }
   log.printf('%7s%s', ' ', buf.toString());
 
diff --git a/lib/config.js b/lib/config.js
index 82cfee17..38d0c03d 100644
--- a/lib/config.js
+++ b/lib/config.js
@@ -71,8 +71,8 @@ const DEFAULT_CONFIG = {
     retry:  2
   },
   code: {
-    editor: 'vim',
-    lang:   'cpp'
+    editor: 'nvim',
+    lang:   'python3'
   },
   file: {
     show:       '${fid}.${slug}',
@@ -80,7 +80,7 @@ const DEFAULT_CONFIG = {
   },
   color: {
     enable: true,
-    theme:  'default'
+    theme:  'dracula'
   },
   icon: {
     theme: ''
diff --git a/lib/core.js b/lib/core.js
index c9df6322..18cfe72f 100644
--- a/lib/core.js
+++ b/lib/core.js
@@ -89,7 +89,7 @@ core.getProblem = function(keyword, needTranslation, cb) {
   this.getProblems(needTranslation, function(e, problems) {
     if (e) return cb(e);
 
-    keyword = Number(keyword) || keyword;	
+    keyword = Number(keyword) || keyword;
     const metaFid = file.exist(keyword) ? Number(file.meta(keyword).id) : NaN;
     const problem = problems.find(function(x) {
       return x.fid + '' === keyword + '' || x.fid + '' === metaFid + '' || x.name === keyword || x.slug === keyword;
@@ -135,4 +135,17 @@ core.exportProblem = function(problem, opts) {
   return file.render(opts.tpl, data);
 };
 
+core.formatProblem = function(problem, opts) {
+  const data = _.extend({}, problem);
+  if (!data.lang) data.lang = opts.lang;
+  data.comment = h.langToCommentStyle(data.lang);
+  let desc = data.desc;
+  desc = desc.replace(/<\/sup>/gm, '').replace(/<sup>/gm, '^');
+  desc = he.decode(cheerio.load(desc).root().text());
+  desc = desc.replace(/\r\n/g, '\n').replace(/^ /mg, '⁠').replace(/\n\n/g, '\n');
+  const wrap = require('wordwrap')(79 - data.comment.line.length);
+  data.desc = wrap(desc);
+  return data;
+};
+
 module.exports = core;
diff --git a/lib/file.js b/lib/file.js
index c2262df1..210df537 100644
--- a/lib/file.js
+++ b/lib/file.js
@@ -25,7 +25,7 @@ file.userHomeDir = function() {
 };
 
 file.homeDir = function() {
-  return path.join(this.userHomeDir(), '.lc');
+  return path.join(this.userHomeDir(), '.config/lc');
 };
 
 file.appDir = function() {