Btw, if you also want to have what I got (better post box, post backgrounds based on visibility), this is the stylesheet I use:
.compose-form__dropdowns button,
.compose-form__buttons button.icon-button {
color: pink;
border-color: pink;
border-radius: 2px;
}
.compose-form__highlightable {
border-radius: 2px;
}
.compose-form__submit > .button {
background: pink;
color: white;
border-radius: 2px;
height: 2.5rem;
}
.status-unlisted,
.status__wrapper-unlisted {
background: #2e2e2e;
}
.status-private,
.status__wrapper-private{
background: #000033;
}
.status-direct,
.status__wrapper-direct {
background-color: #4400007f;
}