fn asset_preview(
ui: &mut Ui,
state: &mut LibraryState,
project: &Project,
id: u64,
thumbs: &mut Option<&mut ThumbCache>,
live: Option<&PreviewFrame>,
labels: &Vec<(String, [u8; 3])>,
palette: &Palette,
resp: &mut LibraryResponse,
ops: &mut Vec<LibOp>,
op_start: &mut bool,
)