# Add own Iconsets

## Example

Your boss is coming in and telling you that a technician needs a map with more than 250 hosts clearly laid out. You think: “Hey, that’s not possible, with a full description for every host!” The font in the background image is not the problem, but the std_small-iconset from NagVis is too big for such a request.

### Solution

Build your own iconset.

## What is an iconset?

A complete iconset consists of 14 files. These files are png images which are named like this:

Filename | Description
--- | ---
<set>_critical.png | Critical state
<set>_critical_ack.png | Acknowledged critical state
<set>_critical_dt.png | Critical state in downtime
<set>_down.png | Down state (Host)
<set>_down_ack.png | Acknowledged down state
<set>_down_dt.png | Down state in downtime
<set>_error.png | Error while fetching status
<set>_ok.png | OK state
<set>_ok_dt.png | OK state in downtime
<set>_pending.png | PENDING state
<set>_unchecked.png | Unchecked service (pending)
<set>_unknown.png | Unknown state
<set>_unknown_ack.png | Acknowledged unknown state
<set>_unknown_dt.png | Unknown state in downtime
<set>_unreachable.png | Unreachable state (Host)
<set>_unreachable_ack.png | Acknowledged unreachable state
<set>_unreachable_dt.png | Unreachable state in downtime
<set>_up.png | Up state (Host)
<set>_up_dt.png | Up state in downtime
<set>_warning.png | Warning state
<set>_warning_ack.png | Acknowledged warning state
<set>_warning_dt.png | Warning state in downtime

NagVis checks for the `<set>_ok.png` image to list the iconsets, means there has to be at least a `<set>_ok.png` image to have a choosable iconset.

## Which programme should I use to create an iconset?

Almost every graphic art software has the ability to build PNG-files. In this example Photoshop is used to create a smaller version of the std_small iconset called std_mini.

Iconset | Icon size | icon map
--- | --- | ---
std_small | 16×16 pixel | ##
mini | 9×9 pixel |

## Implementing the iconset

To implement the set in your NagVis installation, copy all files to the iconset folder (`share/userfiles/images/iconsets`).

## The test

Open one of your maps and add a new host-icon. You should now be able to select std_mini as iconset.