In Yii 2.0, the yii widgets that use Twitter Bootstrap CSS & JS directly, are part of the yii2-bootstrap extension, starting with yii/bootstrap namespace. For customizing bootstrap extension specific widget assets, you could configure your own assets (CSS/JS) using the new Yii Asset Manager in your Yii Config file. Something like:
There are two approaches to converting an Artisteer theme. The first is to simply copy an existing Artisteer – based Yii theme, overlay the CSS and images, then make any necessary tweaks to the layout files. This is undoubtedly the fastest route, but won't teach you as much as doing it from scratch. That's ok. Sometimes getting the job done is the top priority. The second approach is more general and will apply to some extent to other HTML templates that you may want to convert. I'll be covering the first approach in detail, while the second will be more of a general discussion.
When using the latest stable jQuery UI themes (1.8.10) with Yii 1.1.6 (which uses 1.8.6) the widgets don't appear (they're invisible but they're there). In order to make them visible you need to change the following line: