use gpui::{px, rems, App, Pixels, Rems};use settings::Settings;use theme::{ThemeSettings, UiDensity};use ui_macros::derive_dynamic_spacing; // Derives [DynamicSpacing]. See [ui_macros::derive_dynamic_spacing].//// There are 3 UI density settings: Compact, Default, and Comfortable.//// When a tuple of three values is provided, the values are used directly.//// Example: (1, 2, 4) => Compact: 1px, Default: 2px, Comfortable: 4px//// When a single value is provided, the standard spacing formula is// used to derive the of spacing values. This formula can be found in// the macro.//// Example://// Assuming the standard formula is (n-4, n, n+4)//// 24 => Compact: 20px, Default: 24px, Comfortable: 28px//// The [DynamicSpacing] enum variants use a BaseXX format,// where XX = the pixel value @ default rem size and the default UI density.//// Example://// DynamicSpacing::Base16 would return 16px at the default UI scale & density.derive_dynamic_spacing![    (0, 0, 0),    (1, 1, 2),    (1, 2, 4),    (2, 3, 4),    (2, 4, 6),    (3, 6, 8),    (4, 8, 10),    (10, 12, 14),    (14, 16, 18),    (18, 20, 22),    24,    32,    40,    48]; /// Returns the current [`UiDensity`] setting. Use this to/// modify or show something in the UI other than spacing.////// Do not use this to calculate spacing values.////// Always use [DynamicSpacing] for spacing values.pub fn ui_density(cx: &mut App) -> UiDensity {    ThemeSettings::get_global(cx).ui_density}