Doesn't compile

[Ploppz]

I get several of these errors when I try to compile:

error[E0046]: not all trait items implemented, missing: `set_color`, `set_dimensions`, `get_dimensions`, `set_description`, `set_identifier`
   --> src/backend/stacked_bar_chart.rs:109:1
    |
109 | impl Graphable for StackedBarChart {
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `set_color`, `set_dimensions`, `get_dimensions`, `set_description`, `set_identifier` in implementation
    | 
   ::: src/backend/traits.rs:16:5
    |
16  |     fn set_color(&mut self, &str);
    |     ------------------------------ `set_color` from trait
17  |     // set_dimensions
18  |     fn set_dimensions(&mut self, (i32, i32));
    |     ----------------------------------------- `set_dimensions` from trait
19  | 
20  |     fn get_dimensions(&self) -> (i32, i32);
    |     --------------------------------------- `get_dimensions` from trait
21  | 
22  |     fn set_description(&mut self, &str);
    |     ------------------------------------ `set_description` from trait
23  | 
24  |     fn set_identifier(&mut self, &str);
    |     ----------------------------------- `set_identifier` from trait