cahnging min and max label

Hi,
your plugin is just awesome.
I would like to replace the min and max label by two images or icons.
I try to directly replace directly in the shortcode but it does not work

[gauge title="Van Financing Project" width=350px" height="250px" label="T-shirts" value="100" min="https://website.com/img1.png" max="https://website.com/img1.png"]

How can I change it ?

Thanks you for your help,

Cheers from France

https://www.ads-software.com/plugins/gaugepress/