Remove the following -webkit-appearance keywords: button-bevel caret listitem media-controls-background media-controls-fullscreen-background media-current-time-display media-enter-fullscreen-button media-exit-fullscreen-button media-mute-button media-overlay-play-button media-play-button media-time-remaining-display media-toggle-closed-captions-button media-volume-slider-container menulist-textfield menulist-text progress-bar-value They are parsable keywords, but has no painting code.
They are not implemented. We should not keep such useless keywords.