From 2b89b97cd1dd6474762a9b35b9fbf044014e2e82 Mon Sep 17 00:00:00 2001
From: Danilo Leal <67129314+danilo-leal@users.noreply.github.com>
Date: Tue, 15 Apr 2025 10:20:35 -0300
Subject: [PATCH] agent: Adjust markdown heading sizes (#28759)

Adjust the heading sizes for the Agent Panel so they're not aggressively
huge.

Release Notes:

- N/A
---
 crates/agent/src/active_thread.rs | 30 ++++++++++++++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

diff --git a/crates/agent/src/active_thread.rs b/crates/agent/src/active_thread.rs
index bf507896469c9fe02d6192204da5dd573297bb72..f59fabe1396d223bb18dc1cd30491212afaf3790 100644
--- a/crates/agent/src/active_thread.rs
+++ b/crates/agent/src/active_thread.rs
@@ -23,7 +23,7 @@ use gpui::{
 use language::{Buffer, LanguageRegistry};
 use language_model::{LanguageModelRegistry, LanguageModelToolUseId, Role, StopReason};
 use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
-use markdown::{Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown};
+use markdown::{HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown};
 use project::ProjectItem as _;
 use rope::Point;
 use settings::{Settings as _, update_settings_file};
@@ -175,11 +175,37 @@ fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
     });
 
     MarkdownStyle {
-        base_text_style: text_style,
+        base_text_style: text_style.clone(),
         syntax: cx.theme().syntax().clone(),
         selection_background_color: cx.theme().players().local().selection,
         code_block_overflow_x_scroll: true,
         table_overflow_x_scroll: true,
+        heading_level_styles: Some(HeadingLevelStyles {
+            h1: Some(TextStyleRefinement {
+                font_size: Some(rems(1.15).into()),
+                ..Default::default()
+            }),
+            h2: Some(TextStyleRefinement {
+                font_size: Some(rems(1.1).into()),
+                ..Default::default()
+            }),
+            h3: Some(TextStyleRefinement {
+                font_size: Some(rems(1.05).into()),
+                ..Default::default()
+            }),
+            h4: Some(TextStyleRefinement {
+                font_size: Some(rems(1.).into()),
+                ..Default::default()
+            }),
+            h5: Some(TextStyleRefinement {
+                font_size: Some(rems(0.95).into()),
+                ..Default::default()
+            }),
+            h6: Some(TextStyleRefinement {
+                font_size: Some(rems(0.875).into()),
+                ..Default::default()
+            }),
+        }),
         code_block: StyleRefinement {
             padding: EdgesRefinement {
                 top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),