CSI_m_BG_COLOR_BEG
CSI_m_BRIGHT_BG_COLOR_OFF = CSI_m_BRIGHT_BG_COLOR_BEG - CSI_m_BG_COLOR_BEG,
case CSI_m_BG_COLOR_BEG ... CSI_m_BG_COLOR_END:
vc->vc_par[i] -= CSI_m_BG_COLOR_BEG;