Add option to apply opacity to all background colors

In some cases it could be desired to apply 'background_opacity'
to all background colors instead of just 'colors.primary.background',
thus adding an 'colors.opaque_background_colors' option to control that.

Fixes #741.

3 files changed, 12 insertions, 6 deletions

diff --git a/alacritty/src/config/color.rs b/alacritty/src/config/color.rs
index ddb1da29..c0076edb 100644
--- a/alacritty/src/config/color.rs
+++ b/alacritty/src/config/color.rs
@@ -17,6 +17,7 @@ pub struct Colors {
     pub search: SearchColors,
     pub line_indicator: LineIndicatorColors,
     pub hints: HintColors,
+    pub transparent_background_colors: bool,
 }
 
 impl Colors {
diff --git a/alacritty/src/config/ui_config.rs b/alacritty/src/config/ui_config.rs
index cf0f9298..f0917cf5 100644
--- a/alacritty/src/config/ui_config.rs
+++ b/alacritty/src/config/ui_config.rs
@@ -69,7 +69,8 @@ pub struct UiConfig {
     mouse_bindings: MouseBindings,
 
     /// Background opacity from 0.0 to 1.0.
-    background_opacity: Percentage,
+    #[config(deprecated = "use window.opacity instead")]
+    window_opacity: Option<Percentage>,
 }
 
 impl Default for UiConfig {
@@ -84,7 +85,7 @@ impl Default for UiConfig {
             config_paths: Default::default(),
             key_bindings: Default::default(),
             mouse_bindings: Default::default(),
-            background_opacity: Default::default(),
+            window_opacity: Default::default(),
             bell: Default::default(),
             colors: Default::default(),
             draw_bold_text_with_bright_colors: Default::default(),
@@ -115,8 +116,8 @@ impl UiConfig {
     }
 
     #[inline]
-    pub fn background_opacity(&self) -> f32 {
-        self.background_opacity.as_f32()
+    pub fn window_opacity(&self) -> f32 {
+        self.window_opacity.unwrap_or(self.window.opacity).as_f32()
     }
 
     #[inline]
diff --git a/alacritty/src/config/window.rs b/alacritty/src/config/window.rs
index d74390d8..f7a7511c 100644
--- a/alacritty/src/config/window.rs
+++ b/alacritty/src/config/window.rs
@@ -7,7 +7,7 @@ use serde::de::{self, MapAccess, Visitor};
 use serde::{Deserialize, Deserializer};
 
 use alacritty_config_derive::ConfigDeserialize;
-use alacritty_terminal::config::LOG_TARGET_CONFIG;
+use alacritty_terminal::config::{Percentage, LOG_TARGET_CONFIG};
 use alacritty_terminal::index::Column;
 
 use crate::config::ui_config::Delta;
@@ -15,7 +15,7 @@ use crate::config::ui_config::Delta;
 /// Default Alacritty name, used for window title and class.
 pub const DEFAULT_NAME: &str = "Alacritty";
 
-#[derive(ConfigDeserialize, Debug, Clone, PartialEq, Eq)]
+#[derive(ConfigDeserialize, Debug, Clone, PartialEq)]
 pub struct WindowConfig {
     /// Initial position.
     pub position: Option<Delta<i32>>,
@@ -45,6 +45,9 @@ pub struct WindowConfig {
     /// Window class.
     pub class: Class,
 
+    /// Background opacity from 0.0 to 1.0.
+    pub opacity: Percentage,
+
     /// Pixel padding.
     padding: Delta<u8>,
 
@@ -64,6 +67,7 @@ impl Default for WindowConfig {
             gtk_theme_variant: Default::default(),
             dynamic_padding: Default::default(),
             class: Default::default(),
+            opacity: Default::default(),
             padding: Default::default(),
             dimensions: Default::default(),
         }