Enhance: set dark mode in config (#206)

* Set Dark mode in config

* enhance: use snake_case for Antialias and Theme in configuration

* refactor: move theme Configuration to inner ConfigWindowSection

* docs: write down the config changes in the CHANGELOG

* style: remove redundant serde renames on Antialias

* docs: delete entry for inner changes invisible to the user in CHANGELOG

CHANGELOG.md

@@ -1,5 +1,8 @@
 ## Unreleased
 
+### Added
+- Added configuration keyword to switch between dark and light mode.
+
 ### Changed
 - Fix for not being able to delete images on some systems.
 

src/configuration.rs

@@ -15,7 +15,8 @@ use std::time::{Duration, SystemTime, UNIX_EPOCH};
 
 use serde::{Deserialize, Serialize};
 
-#[derive(Debug, Copy, Clone, PartialEq)]
+#[derive(Debug, Serialize, Deserialize, Copy, Clone, PartialEq)]
+#[serde(rename_all = "snake_case")]
 pub enum Theme {
 	Light,
 	Dark,
@@ -30,12 +31,10 @@ impl Theme {
 }
 
 #[derive(Debug, Copy, Clone, PartialEq, Serialize, Deserialize)]
+#[serde(rename_all = "snake_case")]
 pub enum Antialias {
-	#[serde(rename = "auto")]
 	Auto,
-	#[serde(rename = "always")]
 	Always,
-	#[serde(rename = "never")]
 	Never,
 }
 impl Default for Antialias {
@@ -74,6 +73,7 @@ pub struct ConfigWindowSection {
 	pub start_fullscreen: Option<bool>,
 	pub start_maximized: Option<bool>,
 	pub show_bottom_bar: Option<bool>,
+	pub theme: Option<Theme>,
 	pub use_last_window_area: Option<bool>,
 	pub win_w: Option<u32>,
 	pub win_h: Option<u32>,

src/main.rs

@@ -185,7 +185,13 @@ fn main() {
 
 	let update_available = Arc::new(AtomicBool::new(false));
 	let update_check_done = Arc::new(AtomicBool::new(false));
-	let theme = Rc::new(Cell::new(cache.lock().unwrap().theme()));
+
+	let theme = {
+		Rc::new(Cell::new(match &config.borrow().window {
+			Some(ConfigWindowSection { theme: Some(theme_cfg), .. }) => *theme_cfg,
+			_ => cache.lock().unwrap().theme(),
+		}))
+	};
 
 	let set_theme = {
 		let update_label = update_label;