You can specify any HTML for an icon. It’s a popular choice to use Unicode icons because they are extremely fast to load and there are a lot of them, but OliveTin also support Iconify, and just images.

Figure 2. Examples of icons in OliveTin

For a quick reference, here are some examples of how to use different types of icons in OliveTin;

  - title: Unicode (emoji) alias icon
    shell: echo "Hello!"
    icon: smile

  - title: Unicode (emoji) icon
    shell: echo "Hello!"
    icon: "😎"

  - title: Iconify Icon
    icon: <iconify-icon icon="ant-design:bug-filled"></iconify-icon>

  - title: HTML Image (jpg/png/gif/etc) icon
    shell: echo "Hello!"
    icon: '<img src = "custom-webui/icons/mrgreen.gif" style = "width: 1em;" />'

Iconify Icons

Browse over 200,000 icons that can be used with OliveTin here; https://icon-sets.iconify.design/

Note, the icons are loaded from the internet, but should be cached by your browser afer the first load.

On the Iconfiy website, you should select Iconify Icon


Then copy this icon code, and place it in your config;

  - title: Iconify Icon
    icon: <iconify-icon icon="ant-design:bug-filled"></iconify-icon>

And you should get something that looks like this;

action button iconify

Unicode icons ("emoji")

For example on the here is a list of "Emoji" in unicode. If you find "Smiling face with sunglasses" you can click on it to see it’s "HTML-code". In OliveTin, you’d setup the icon like this;

  - title: Unicode (emoji) icon
    icon: "&#128526;"
    shell: echo "You are awesome"

Full HTML icons (<img src …​)

You can also specify the full HTML for an image, like;

    - title: HTML (jpg/png/etc) icon
      icon: '<img src = "https://www.docker.com/sites/default/files/d8/2019-07/vertical-logo-monochromatic.png" width = "48px"/>'
      shell: docker ps
This full HTML thing is very customizable, but easier options will probably be added in the future as well.

Saving and serving icons for "offline" use

Sometimes you might want to store images to use as icons, with your installation of OliveTin. This can be useful when your installation is meant to be offline, or disconnected from the internet. This is easily done.

OliveTin will try to create a directory called custom-webui in the same directory as the config.yaml file. If this directory exists, OliveTin will serve files from this directory as if they were in the standard webui directory, at /customIcons/.

Ideally, put your icons in a new <your-config-dir>/custom-webui/icons/. Below is a picture of Mr Green. Feel free to save his likeness and awesomeness for yourself, for future awesome offline usage.

Mr Green
Figure 3. Mr Green, the original awesome smily.

In your OliveTin config, customize your command again using HTML, like this;

    - title: Mr Green
      icon: '<img src = "custom-webui/icons/mrgreen.gif" />'
      shell: echo "I don't like the word 'emoji' "

This will result in a locally hosted icon that will work offline, that looks like this;