line 387 ... which is passwordcharacter: ... and change the value ... different values rappresent different symbols
It was line 376 in a logon I just checked, but this is the block to look for
edit [id=atom(password)]
{
background: rcbmp(102,6,#FF00FF,0,0,1,0);
borderthickness: rect(6,6,6,6);
passwordcharacter: 9679;
fontface: "arial";
fontsize: 13pt;
I changed 9679 to 9824, just random, got spades as images. Changing the font also works.