--- title: Latest design guides description: It’s been a while since our last update to the app design guides so I thought it was about time I shared the latest additions to this growing resource. Screen sizes A brief intro to the framework we use for designing for a scalable OS – the grid unit. With a link directly to a more detailed […] url: https://canonical.com/blog/latest-design-guides?format=md --- 1. [Blog](https://canonical.com/blog) 2. Article --- [Canonical](https://canonical.com/blog/author/canonical "More about Canonical") 25 June 2013 # Latest design guides [app design](https://canonical.com/blog/tag/app-design) [app design guides](https://canonical.com/blog/tag/app-design-guides) [Design](https://canonical.com/blog/tag/design) --- Share the article It’s been a while since our last update to the app design guides so I thought it was about time I shared the latest additions to this growing resource. ## Screen sizes A brief intro to the framework we use for designing for a scalable OS – [the grid unit](http://developer.ubuntu.com/api/ubuntu-12.10/qml/mobile/resolution-independence.html "Resolution independence"). With a link directly to a more detailed explanation on [developer.ubuntu.com](http://developer.ubuntu.com/api/ubuntu-12.10/qml/mobile/resolution-independence.html "Resolution independence"). [Read about designing for multiple screen sizes.](http://design.ubuntu.com/apps/get-started/screen-sizes "Screen sizes") ## FAQs We’ve started to collect frequently asked questions. This section could be improved if it was a little more ‘live’ so we’ll have a think about that. [Read our most frequently asked questions.](http://design.ubuntu.com/apps/get-started/faqs "FAQs") ## Combo button When you are receiving a phone call, it is possible to decline the call (of course), or alternatively you can decline and reply with a message. To accommodate this and similar use cases we have designed the combo button. Use the combo button to display secondary variations of the primary action. [See our new combo button.](http://design.ubuntu.com/apps/building-blocks/buttons#combo-button "Combo button") ## Option selector While designing [System Settings](https://wiki.ubuntu.com/SystemSettings "System Settings") we have come across many situations where there is a need to select from a list of mutually exclusive options. Use the option selector when you need to select an option from a list. [See our new option selector building block.](http://design.ubuntu.com/apps/building-blocks/option-selector "Option selector") ## Slider Our slider has gone through a little makeover too. [Take a look here.](http://design.ubuntu.com/apps/building-blocks/slider "Slider") Remember, this site is a work in progress, so we will continue to iterate on the content and design. As usual you can find us on the [Ubuntu Phone mailing list](https://launchpad.net/~ubuntu-phone) and the [IRC channel](http://webchat.freenode.net/?channels=ubuntu-touch). [Get in touch Interested in running Ubuntu in your organization?](https://ubuntu.com/about/contact-us/form) ## Sign up for our newsletter Get the latest Canonical news and updates in your inbox. Work email: \*I agree to receive information about Canonical's products and services. By submitting this form, I confirm that I have read and agree to [Canonical's Privacy Policy](https://canonical.com/legal/dataprivacy). Sign up ## Share on --- ## Related posts [### Challenges designers face in open source (and how to fix them)](https://canonical.com/blog/challenges-designers-face-in-open-source-and-how-to-fix-them) Open source powers up to 90% of modern software, yet many projects lack usability. Canonical’s Design team surveyed 115 cross-functional professionals to uncover the 4 core... [Kola Ojoodide](https://canonical.com/blog/author/kola-ojoodide) 26 June 2026 [### Why web engineering is great](https://canonical.com/blog/why-web-engineering-is-great) Hi, I’m Johann! I’m an engineering manager in Canonical’s web team. For the larger part of my 15 years of work experience as engineer, I’ve been working in web development.... [Johann Wolf](https://canonical.com/blog/author/johannwolf) 27 April 2026 [### Canonical’s recipe for High Performance Computing](https://canonical.com/blog/canonicals-recipe-for-high-performance-computing) In essence, High Performance Computing (HPC) is quite simple. Speed and scale. In practice, the concept is quite complex and hard to achieve. It is not dissimilar to what... [Igor Ljubuncic](https://canonical.com/blog/author/igorljubuncic) 24 January 2024 [### Web team – hack week 2023](https://canonical.com/blog/web-team-hack-week-2023) Today, around 96% of software projects utilize open source in some way. The web team here at Canonical is passionate about Open source. We lead with an open-by-default approach... [Anthony Dillon](https://canonical.com/blog/author/ya-bo-ng) 25 October 2023