implement indicator icons, update quotes decoration

src/app/browser/window/tab/item/page/content/text/gemini/reader.rs

@@ -1,10 +1,12 @@
 mod ansi;
 pub mod error;
+mod icon;
 mod syntax;
 mod tag;
 mod widget;
 
 pub use error::Error;
+use icon::Icon;
 use syntax::Syntax;
 use tag::Tag;
 use widget::Widget;
@@ -58,6 +60,9 @@ impl Reader {
         // Init multiline code builder features
         let mut multiline = None;
 
+        // Init quote icon feature
+        let mut is_line_after_quote = false;
+
         // Init colors
         // @TODO use accent colors in adw 1.6 / ubuntu 24.10+
         let link_color = (RGBA::new(0.2, 0.5, 0.9, 1.0), RGBA::new(0.2, 0.5, 0.9, 0.9));
@@ -65,6 +70,9 @@ impl Reader {
         // Init syntect highlight features
         let syntax = Syntax::new();
 
+        // Init icons
+        let icon = Icon::new();
+
         // Init tags
         let tag = Tag::new();
 
@@ -282,12 +290,24 @@ impl Reader {
 
             // Is quote
             if let Some(quote) = Quote::from(line) {
+                // Show quote indicator if last line is not quote (to prevent duplicates)
+                if !is_line_after_quote {
+                    // Show only if the icons resolved for default `Display`
+                    if let Some(ref icon) = icon {
+                        buffer.insert_paintable(&mut buffer.end_iter(), &icon.quote);
+                        buffer.insert(&mut buffer.end_iter(), NEW_LINE);
+                    }
+                }
+                is_line_after_quote = true;
+
                 // Append value to buffer
                 buffer.insert_with_tags(&mut buffer.end_iter(), &quote.value, &[&tag.quote]);
                 buffer.insert(&mut buffer.end_iter(), NEW_LINE);
 
                 // Skip other actions for this line
                 continue;
+            } else {
+                is_line_after_quote = false;
             }
 
             // Nothing match custom tags above,

src/app/browser/window/tab/item/page/content/text/gemini/reader/icon.rs

@@ -0,0 +1,31 @@
+use gtk::{gdk::Display, IconLookupFlags, IconPaintable, IconTheme, TextDirection};
+
+const SIZE: i32 = 16;
+
+/// Indication icons asset (for tag blocks decoration)
+pub struct Icon {
+    pub quote: IconPaintable,
+    // @TODO other tags..
+}
+
+impl Icon {
+    pub fn new() -> Option<Self> {
+        Display::default().map(|display| {
+            let theme = IconTheme::for_display(&display);
+            Self {
+                quote: icon(&theme, "mail-forward-symbolic"),
+            }
+        })
+    }
+}
+
+fn icon(theme: &IconTheme, name: &str) -> IconPaintable {
+    theme.lookup_icon(
+        name,
+        &[], // @TODO
+        SIZE,
+        SIZE,
+        TextDirection::None,
+        IconLookupFlags::FORCE_SYMBOLIC,
+    )
+}

src/app/browser/window/tab/item/page/content/text/gemini/reader/tag/quote.rs

@@ -1,8 +1,8 @@
-use gtk::{pango::Style, TextTag, WrapMode};
+use gtk::{TextTag, WrapMode};
 
 pub fn new() -> TextTag {
     TextTag::builder()
-        .style(Style::Italic)
+        .left_margin(28)
         .wrap_mode(WrapMode::Word)
         .build()
 }