Sure, the blue is nice and it has a nice office look but you wouldn't want all applications to have the same color. Is it easy customize the look in ext js?
There is some built-in functionality for customization, however it's not the quickest thing to make a theme for it (and so there are only a few complete themes available).
However, there are some themes the community is working on, maybe one suits your taste?
If you want to try your hand at a color combination you like, you may want to give this a visit, closest thing to Theme Roller I've found for ExtJS: ExtJS Color Theme Changer
We use the slate theme on a large project. The customer likes it. See the link provided by @Nick Craver.
To date, I have found it is not particularly easy to change the default look and feel of the more complex ExtJS components like grids or trees. However, one of the reasons I like ExtJS is they provide complex, capable components out-of-the-box. I usually stick to an existing theme when I plan to use these components.
Nothing prevents one from customizing components and ExtJS provides the low level utilities required to create anything.
Theming Ext JS is much easier in 3.x than it was in 2.x. If you'd like to purchase a new theme, a new site has popped up with for-sale themes: extthemes.com. You could even contact the developer if you'd like a custom theme built.
If you'd like to try it yourself, simply make a copy and rename resources/xtheme-gray.css
and resources/images/gray
, and start changing css!
One final option is to use the Ext JS theme generator, which is a ruby-powered development tool which is open sourced on github. This is very new and I'm really excited about it.