Welcome!

Adobe Flex Authors: Matthew Lobas, PR.com Newswire, Shelly Palmer, Kevin Benedict

Related Topics: Adobe Flex, ColdFusion

Adobe Flex: Article

Adobe Flex Interface Customization - Themes, Styles, Skins

The basics of themes, styles, and skins

One of the great things about Flex is that you get to spend most of your time working on the business logic and workflow, and less on the cosmetic aspect. This is because the Flex default's look-and-feel is great! The only problem of course is that most people won't spend much time customizing the look, resulting in many Flex apps looking the same. In Flex 1.5 many folks customized the color scheme, but few ventured into modifying the actual skins of the components.

 The designer approach would be to modify the graphical aspects of a theme, a laborious process of editing many items in various Flash source files ("FLAs") using the Flash Professional IDE.

The second approach let advanced Flex programmers create extremely customized interfaces; however this approach made it difficult for designers and developers to hand off the graphical "assets" of a project.

In Flex 2 things got a whole lot easier. In this article we'll look at the basics of changing the look-and-feel of your Flex application by introducing Flex Themes, Styles, and Skins.

Terminology
Before we get into it, let's quickly define what all the terms means.

Themes are simply a collection of style definitions, images (a k a graphical assets), and skins. Themes give you a lot of control and convenience in terms of how you package it all together and distribute it. You can distribute your theme as separate individual files, or ideally compile it into a theme SWC (commonly pronounced as "swick," a sort of JAR/ZIP-like archive format for Flash).

Styles are similar to the CSS you've been using for your Web applications. In fact, Flex's styles follow the CSS 2.0 syntax and support many of the common style properties that you're used to.

Although many of the visual components and controls support a variety of style properties that let you control fine-grain details like the corner radius of a button, fill gradients, and transparency. They're still based on a certain look; using skins you can completely alter the graphics and interface behavior.

Out of the Box
Out-of-the-box there are a couple of things you can do to easily change the look of your app. By default the Theme Flex uses is called Halo and it supports a style property called themeColor.

In HTML you can assign predefined colors like Red and Blue to certain CSS properties. Flex supports the same thing, but includes four interesting colors ready-to-use. They include:

  • haloBlue (the default)
  • haloOrange
  • haloGreen
  • haloSilver
To use them with the themeColor is pretty simple. To change it on an application-wide basis, modify your main Application tag to include this:

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" themeColor="haloOrange">

You can also do this on a per-component instance basis as well. For example:

<mx:Button label="My Button" themeColor="haloGreen">

Now don't get too excited. The difference is rather subtle in that the most noticeable change is when you mouse over various components. In the case of the button it changes the outer highlight, and with the Datagrid (see the graphic below) it changes the Header column.

Imaga A

Fortunately there's a much more dramatic change that you can employ with the out-of-the-box themes. The themes that come with Flex 2 are:

  • Halo (the default, embedded in the framework.swc)
  • HaloClassic (haloclassic.swc)
  • Ice (Ice.css)
  • Institutional (Institutional.css)
  • Wooden (Wooden.css)
  • Smoke (Smoke.css)
You'll find the source of these files located under the <flex builder root>\Flex SDK 2\frameworks\themes directory. To make quick use of them:
  • Start off with a Project in Flex Builder 2 either by opening an existing one or creating a new one.
  • Using the mouse, right-click on the project folder, and select properties

    Image B

  • Select the Flex Compiler section
  • Under "Additional compiler arguments," append the -theme parameter located as the desired theme file. For example:

    -theme "C:\Program Files\Adobe\Flex Builder 2\Flex SDK 2\frameworks\themes\Smoke.css"

  • Now build and run the application

More Stories By Tariq Ahmed

Tariq Ahmed is the manager of product development at Amcom Computer Services, a former project lead at eBay, and host of www.cflex.net. He specializes in leveraging technology with process engineering to reduce operating costs while maximizing revenue potential. You can find him on the Web at www.dopejam.com.

Comments (6) View Comments

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


Most Recent Comments
WebDDJ Duty Online Editor 08/14/06 06:07:57 AM EDT

Please go right ahead, Dreamer. Perhaps you would post the URL back to this thread too - thanks!!

Web Developer's & Designer's Journal
SYS-CON Media

Dreamer 08/14/06 04:07:57 AM EDT

wonderful post.
I am a Chinese.Can I translate this post into Chinese and publish on the web?Of course,with links to the original post. I want more people to know Flex.Thanks

SYS-CON India News Desk 08/10/06 01:06:15 PM EDT

One of the great things about Flex is that you get to spend most of your time working on the business logic and workflow, and less on the cosmetic aspect. This is because the Flex default's look-and-feel is great! The only problem of course is that most people won't spend much time customizing the look, resulting in many Flex apps looking the same. In Flex 1.5 many folks customized the color scheme, but few ventured into modifying the actual skins of the components.

SYS-CON Italy News Desk 08/09/06 07:37:26 PM EDT

One of the great things about Flex is that you get to spend most of your time working on the business logic and workflow, and less on the cosmetic aspect. This is because the Flex default's look-and-feel is great! The only problem of course is that most people won't spend much time customizing the look, resulting in many Flex apps looking the same. In Flex 1.5 many folks customized the color scheme, but few ventured into modifying the actual skins of the components.

Web Developer's & Designer's Journal 08/09/06 04:14:54 PM EDT

One of the great things about Flex is that you get to spend most of your time working on the business logic and workflow, and less on the cosmetic aspect. This is because the Flex default's look-and-feel is great! The only problem of course is that most people won't spend much time customizing the look, resulting in many Flex apps looking the same. In Flex 1.5 many folks customized the color scheme, but few ventured into modifying the actual skins of the components.

Web Developer's & Designer's Journal 08/09/06 02:40:45 PM EDT

One of the great things about Flex is that you get to spend most of your time working on the business logic and workflow, and less on the cosmetic aspect. This is because the Flex default's look-and-feel is great! The only problem of course is that most people won't spend much time customizing the look, resulting in many Flex apps looking the same. In Flex 1.5 many folks customized the color scheme, but few ventured into modifying the actual skins of the components.

@ThingsExpo Stories
As businesses evolve, they need technology that is simple to help them succeed today and flexible enough to help them build for tomorrow. Chrome is fit for the workplace of the future — providing a secure, consistent user experience across a range of devices that can be used anywhere. In her session at 21st Cloud Expo, Vidya Nagarajan, a Senior Product Manager at Google, will take a look at various options as to how ChromeOS can be leveraged to interact with people on the devices, and formats th...
SYS-CON Events announced today that Yuasa System will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Yuasa System is introducing a multi-purpose endurance testing system for flexible displays, OLED devices, flexible substrates, flat cables, and films in smartphones, wearables, automobiles, and healthcare.
Organizations do not need a Big Data strategy; they need a business strategy that incorporates Big Data. Most organizations lack a road map for using Big Data to optimize key business processes, deliver a differentiated customer experience, or uncover new business opportunities. They do not understand what’s possible with respect to integrating Big Data into the business model.
Enterprises have taken advantage of IoT to achieve important revenue and cost advantages. What is less apparent is how incumbent enterprises operating at scale have, following success with IoT, built analytic, operations management and software development capabilities – ranging from autonomous vehicles to manageable robotics installations. They have embraced these capabilities as if they were Silicon Valley startups. As a result, many firms employ new business models that place enormous impor...
SYS-CON Events announced today that Taica will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Taica manufacturers Alpha-GEL brand silicone components and materials, which maintain outstanding performance over a wide temperature range -40C to +200C. For more information, visit http://www.taica.co.jp/english/.
SYS-CON Events announced today that Dasher Technologies will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Dasher Technologies, Inc. ® is a premier IT solution provider that delivers expert technical resources along with trusted account executives to architect and deliver complete IT solutions and services to help our clients execute their goals, plans and objectives. Since 1999, we'v...
Recently, REAN Cloud built a digital concierge for a North Carolina hospital that had observed that most patient call button questions were repetitive. In addition, the paper-based process used to measure patient health metrics was laborious, not in real-time and sometimes error-prone. In their session at 21st Cloud Expo, Sean Finnerty, Executive Director, Practice Lead, Health Care & Life Science at REAN Cloud, and Dr. S.P.T. Krishnan, Principal Architect at REAN Cloud, will discuss how they b...
SYS-CON Events announced today that MIRAI Inc. will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. MIRAI Inc. are IT consultants from the public sector whose mission is to solve social issues by technology and innovation and to create a meaningful future for people.
SYS-CON Events announced today that TidalScale, a leading provider of systems and services, will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. TidalScale has been involved in shaping the computing landscape. They've designed, developed and deployed some of the most important and successful systems and services in the history of the computing industry - internet, Ethernet, operating s...
SYS-CON Events announced today that IBM has been named “Diamond Sponsor” of SYS-CON's 21st Cloud Expo, which will take place on October 31 through November 2nd 2017 at the Santa Clara Convention Center in Santa Clara, California.
Join IBM November 1 at 21st Cloud Expo at the Santa Clara Convention Center in Santa Clara, CA, and learn how IBM Watson can bring cognitive services and AI to intelligent, unmanned systems. Cognitive analysis impacts today’s systems with unparalleled ability that were previously available only to manned, back-end operations. Thanks to cloud processing, IBM Watson can bring cognitive services and AI to intelligent, unmanned systems. Imagine a robot vacuum that becomes your personal assistant tha...
SYS-CON Events announced today that TidalScale will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. TidalScale is the leading provider of Software-Defined Servers that bring flexibility to modern data centers by right-sizing servers on the fly to fit any data set or workload. TidalScale’s award-winning inverse hypervisor technology combines multiple commodity servers (including their ass...
As hybrid cloud becomes the de-facto standard mode of operation for most enterprises, new challenges arise on how to efficiently and economically share data across environments. In his session at 21st Cloud Expo, Dr. Allon Cohen, VP of Product at Elastifile, will explore new techniques and best practices that help enterprise IT benefit from the advantages of hybrid cloud environments by enabling data availability for both legacy enterprise and cloud-native mission critical applications. By rev...
Infoblox delivers Actionable Network Intelligence to enterprise, government, and service provider customers around the world. They are the industry leader in DNS, DHCP, and IP address management, the category known as DDI. We empower thousands of organizations to control and secure their networks from the core-enabling them to increase efficiency and visibility, improve customer service, and meet compliance requirements.
With major technology companies and startups seriously embracing Cloud strategies, now is the perfect time to attend 21st Cloud Expo October 31 - November 2, 2017, at the Santa Clara Convention Center, CA, and June 12-14, 2018, at the Javits Center in New York City, NY, and learn what is going on, contribute to the discussions, and ensure that your enterprise is on the right path to Digital Transformation.
SYS-CON Events announced today that N3N will exhibit at SYS-CON's @ThingsExpo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. N3N’s solutions increase the effectiveness of operations and control centers, increase the value of IoT investments, and facilitate real-time operational decision making. N3N enables operations teams with a four dimensional digital “big board” that consolidates real-time live video feeds alongside IoT sensor data a...
Amazon is pursuing new markets and disrupting industries at an incredible pace. Almost every industry seems to be in its crosshairs. Companies and industries that once thought they were safe are now worried about being “Amazoned.”. The new watch word should be “Be afraid. Be very afraid.” In his session 21st Cloud Expo, Chris Kocher, a co-founder of Grey Heron, will address questions such as: What new areas is Amazon disrupting? How are they doing this? Where are they likely to go? What are th...
In his Opening Keynote at 21st Cloud Expo, John Considine, General Manager of IBM Cloud Infrastructure, will lead you through the exciting evolution of the cloud. He'll look at this major disruption from the perspective of technology, business models, and what this means for enterprises of all sizes. John Considine is General Manager of Cloud Infrastructure Services at IBM. In that role he is responsible for leading IBM’s public cloud infrastructure including strategy, development, and offering ...
Digital transformation is changing the face of business. The IDC predicts that enterprises will commit to a massive new scale of digital transformation, to stake out leadership positions in the "digital transformation economy." Accordingly, attendees at the upcoming Cloud Expo | @ThingsExpo at the Santa Clara Convention Center in Santa Clara, CA, Oct 31-Nov 2, will find fresh new content in a new track called Enterprise Cloud & Digital Transformation.
SYS-CON Events announced today that NetApp has been named “Bronze Sponsor” of SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. NetApp is the data authority for hybrid cloud. NetApp provides a full range of hybrid cloud data services that simplify management of applications and data across cloud and on-premises environments to accelerate digital transformation. Together with their partners, NetApp emp...