fix fmt CI problem
use crate::coord::Shift;
use crate::drawing::{DrawingArea, IntoDrawingArea};
use base64;
-use image::{png::PngEncoder, ImageBuffer, ImageError, Pixel, RgbImage, Rgb};
-use std::ops::Deref;
-use plotters_svg::SVGBackend;
+use image::{png::PngEncoder, ImageBuffer, ImageError, Pixel, Rgb, RgbImage};
use plotters_bitmap::BitMapBackend;
+use plotters_svg::SVGBackend;
+use std::ops::Deref;
/// The wrapper for the generated SVG
pub struct SVGWrapper(String, String);
