Replaced all references to Smalltalk by instvar `environment` in new system browser.
/* XPM */
static char *stx_32x32_xpm[] = {
/* width height ncolors chars_per_pixel */
"32 32 2 1",
/* colors */
"a c black",
"b c #008080",
/* pixels */
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"aaaaaaaaaabbbaaaaaaaaaaaaaabaaaa",
"aaaaaaaaaabbbaaaaaaaaaaaaabbaaaa",
"aaaaaaaaaabbbaaaaaaaaaaaabbaaaaa",
"aaaaaaaaaabbbbaaaaaaaaaabbaaaaaa",
"aaaaaaaaaabbbbaaaaaaaaabbaaaaaaa",
"aaaaaaaaaaabbbaaaaaaaabbaaaaaaaa",
"aaaaaaaaaaaabbbaaaaaabbaaaaaaaaa",
"aaaaaaaaaaaabbbaaaaabbaaaaaaaaaa",
"aaaaaaaaaaaaabbaaaabbaaaaaaaaaaa",
"aaaaaaaaaaaaabbbaabbaaaaaaaaaaaa",
"aaaaaaaaaaaaaabbbbbaaaaaaaaaaaaa",
"aaaaaaaaaaaaaaabbbaaaaaaaaaaaaaa",
"aaaaaaaaaaaaaaabbbaaaaaaaaaaaaaa",
"aaaaaaaaaaaaaabbbbaaaaaaaaaaaaaa",
"aaaaaaaaaaaaabbbbbbaaaaaaaaaaaaa",
"aaaaaaaaaaaabbbaabbaaaaaaaaaaaaa",
"aaaaaaaaaaabbbaaaabbaaaaaaaaaaaa",
"aaaaaaaaaabbbaaaaaabaaaaaaaaaaaa",
"aaaaaaaaabbbaaaaaaabbaaaaaaaaaaa",
"aaaaaaaabbbaaaaaaaaabbaaaaaaaaaa",
"aaaaaabbbbaaaaaaaaaaabaaaaaaaaaa",
"aaaaabbbbbaaaaaaaaaaabbaaaaaaaaa",
"aaaabbbbbaaaaaaaaaaaaabbaaaaaaaa",
"aaaabbbbaaaaaaaaaaaaaaabaaaaaaaa",
"aaaaaaaaaaaaaaaaaaaaaaaabaaaaaaa",
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
};