From 8688e47ddb932818d4e0992299c3cbbff6cf0572 Mon Sep 17 00:00:00 2001
From: Carlo Abelli <carlo@abelli.me>
Date: Sun, 28 Jun 2020 20:07:16 -0400
Subject: [PATCH] Fix foreground dimming with truecolor text

Fixes #3766.
---
 CHANGELOG.md                       | 1 +
 alacritty_terminal/src/term/mod.rs | 7 +++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1af19d7d..0297b1e1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -51,6 +51,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Display not scrolling when printing new lines while scrolled in history
 - Regression in font rendering on macOS
 - Scroll down escape (`CSI Ps T`) incorrectly pulling lines from history
+- Dim escape (`CSI 2 m`) support for truecolor text
 
 ## 0.4.3
 
diff --git a/alacritty_terminal/src/term/mod.rs b/alacritty_terminal/src/term/mod.rs
index d538a427..bed3f1bc 100644
--- a/alacritty_terminal/src/term/mod.rs
+++ b/alacritty_terminal/src/term/mod.rs
@@ -21,7 +21,7 @@ use crate::grid::{
 use crate::index::{self, Column, IndexRange, Line, Point, Side};
 use crate::selection::{Selection, SelectionRange};
 use crate::term::cell::{Cell, Flags, LineLength};
-use crate::term::color::Rgb;
+use crate::term::color::{Rgb, DIM_FACTOR};
 use crate::vi_mode::{ViModeCursor, ViMotion};
 
 pub mod cell;
@@ -378,7 +378,10 @@ impl RenderableCell {
 
     fn compute_fg_rgb<C>(config: &Config<C>, colors: &color::List, fg: Color, flags: Flags) -> Rgb {
         match fg {
-            Color::Spec(rgb) => rgb,
+            Color::Spec(rgb) => match flags & Flags::DIM {
+                Flags::DIM => rgb * DIM_FACTOR,
+                _ => rgb,
+            },
             Color::Named(ansi) => {
                 match (config.draw_bold_text_with_bright_colors(), flags & Flags::DIM_BOLD) {
                     // If no bright foreground is set, treat it like the BOLD flag doesn't exist.