twittify-extras.css

.RichEditor div[contenteditable],
.RichEditor div[contenteditable]:focus,
.RichEditor div[contenteditable].fake-focus {
    color: white;
}
.js-tweet-text-container {
    color: white;
}
.ProfileSidebar .TweetImpressionsModule,
.ProfileSidebar .ProfileLifelineInfo,
.ProfileSidebar .RelatedUsers {
    color: white;
    background-color: rgba(0, 0, 0, 0);
}
.TwitterCard .PollXChoice-optionContainer .PollXChoice-choice--chart {
    background: #555;
}
.TwitterCard .PollXChoice-optionContainer .PollXChoice-choice--text {
    color: white;
}
.ProfileSidebar .TweetImpressionsModule,
.ProfileSidebar .ProfileLifelineInfo,
.ProfileSidebar .RelatedUsers {
    border: 0px solid #fff;
}

.NotificationsHeadingContent {
    background: none;
}