This is the evildoer: 
should kinda be defaulted by ignition, as the color assigned there serves no purpose, (also what a weird class name)
but can be fixed: change this into theme.css
.ia_dropdown__valuePill__value {
color: unset;
}
or inject it into a styleclass
}.ia_dropdown__valuePill__value {
color: unset;
}{
for the dropdown shape you can do the same for
.ia_dropdown__expandIcon {
fill: unset;
}