* task #40521, add new theme "blue"（青春蓝）.

module/common/lang/de.php

@@ -269,6 +269,7 @@ $lang->lang = 'Sprache';
 /* Theme style. */
 $lang->theme                = 'Theme';
 $lang->themes['default']    = 'ZenTao Blau (Standard)';
+$lang->themes['blue']       = 'Blau';
 $lang->themes['green']      = 'Grün';
 $lang->themes['red']        = 'Rot';
 $lang->themes['purple']     = 'Lila';

module/common/lang/en.php

@@ -288,6 +288,7 @@ $lang->lang = 'Language';
 /* Theme style. */
 $lang->theme                = 'Theme';
 $lang->themes['default']    = 'Default';
+$lang->themes['blue']       = 'Blue';
 $lang->themes['green']      = 'Green';
 $lang->themes['red']        = 'Red';
 $lang->themes['purple']     = 'Purple';

module/common/lang/fr.php

@@ -269,6 +269,7 @@ $lang->lang = 'Langue';
 /* Theme style. */
 $lang->theme                = 'Theme';
 $lang->themes['default']    = 'Default';
+$lang->themes['blue']       = 'Blue';
 $lang->themes['green']      = 'Green';
 $lang->themes['red']        = 'Red';
 $lang->themes['purple']     = 'Purple';

module/common/lang/vi.php

@@ -269,6 +269,7 @@ $lang->lang = 'Ngôn ngữ';
 /* Theme style. */
 $lang->theme = 'Theme';
 $lang->themes['default']    = 'Mặc định';
+$lang->themes['blue']       = 'Blue';
 $lang->themes['green']      = 'Green';
 $lang->themes['red']        = 'Red';
 $lang->themes['purple']     = 'Purple';

module/common/lang/zh-cn.php

@@ -288,6 +288,7 @@ $lang->lang = 'Language';
 /* 风格列表。*/
 $lang->theme                = '主题';
 $lang->themes['default']    = '禅道蓝（默认）';
+$lang->themes['blue']       = '青春蓝';
 $lang->themes['green']      = '叶兰绿';
 $lang->themes['red']        = '赤诚红';
 $lang->themes['purple']     = '玉烟紫';

module/common/lang/zh-tw.php

@@ -288,6 +288,7 @@ $lang->lang = 'Language';
 /* 風格列表。*/
 $lang->theme                = '主題';
 $lang->themes['default']    = '禪道藍（預設）';
+$lang->themes['blue']       = '青春藍';
 $lang->themes['green']      = '葉蘭綠';
 $lang->themes['red']        = '赤誠紅';
 $lang->themes['purple']     = '玉煙紫';