monkeytype/public/themes/bushido.css

:root {
    --bg-color: #414755;
    --main-color: #ec4c56;
    --caret-color: #ec4c56;
    --sub-color: #ebeaef;
}
.word letter.incorrect{
    color: #ebe04c;
}
.word.error{
    border-bottom: 2px solid #ebe04c;
}
.word letter.incorrect.extra {
    color: #797717;
}