Icons disappear

Thank you for the answers, they helped me. The problem is resolved.

Icons turn out small, is it possible to increase their size?

I doubt if you use standard maxscript button controls.
You can use dotnet button. set the font size to be bigger and the arrows have to become bigger as well.
Or you can use this http://www.scriptspot.com/3ds-max/scripts/base64-dotnet-image-encoder
to embed icons with the size you want.

I use the standard 3D max button on which I use "\ x2199"
The icon turns out to be small, I would like to enlarge it. Is it possible to achieve this.

I can’t download the utility.
Is there a good example of how this works?
Thanks.

You can't make the "\x2199" bigger. You can try dotnet controls instead of mxs controls and to set the font size to be bigger. Then the "\x2199" may be drawn bigger.

Link to download the Base64functions:

https://drive.google.com/open?id=1kfVi_INXCVxBiKUyD838fD-oGrAlimzk

I will try this.

You copy-paste icons in your code or you type this "x\2798"?

When saving the file, choose a format that supports unicode characters: