add_file( CFG_PREFIX "blend-image", NULL, NULL, BLEND_IMAGE_TEXT,
BLEND_IMAGE_LONGTEXT, false );
add_string( CFG_PREFIX "blend-chroma", "YUVA", NULL, BLEND_CHROMA_TEXT,
BLEND_CHROMA_LONGTEXT, false );
add_file( CFG_PREFIX "blend-image", NULL, NULL, BLEND_IMAGE_TEXT,
BLEND_IMAGE_LONGTEXT, false );
add_string( CFG_PREFIX "blend-chroma", "YUVA", NULL, BLEND_CHROMA_TEXT,
BLEND_CHROMA_LONGTEXT, false );