cargo run --release -p file_dialog
warning: struct `DummyStorage` is never constructed
   --> crates/eframe/src/epi.rs:803:19
    |
803 | pub(crate) struct DummyStorage {}
    |                   ^^^^^^^^^^^^
    |
    = note: `DummyStorage` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
    = note: `#[warn(dead_code)]` on by default

warning: `eframe` (lib) generated 1 warning
    Finished `release` profile [optimized] target(s) in 0.50s
     Running `target/release/file_dialog`