fix by cargo

src/main.rs

@@ -13,12 +13,12 @@ use utils::{is_delta_format_valid, str_to_sec};
 use std::fs;
 
 use iced::widget::{TextInput, column, text};
-use iced::{Application, Element, Font, Subscription, font};
+use iced::{Element, Font, Subscription};
 use iced::{
     Color, Length, Task, Theme,
     widget::{Column, button, canvas, container, pick_list, row, scrollable, slider},
 };
-use iced_aw::widget::{ColorPicker, color_picker};
+use iced_aw::widget::color_picker;
 
 use std::f32::consts::PI;
 use std::time::Instant;