export entire TextView widget reference to the Search component

src/app/browser/window/tab/item/page/search/subject/tag.rs

@@ -0,0 +1,32 @@
+mod current;
+mod found;
+
+use gtk::{TextTag, TextTagTable};
+
+pub struct Tag {
+    pub current: TextTag,
+    pub found: TextTag,
+}
+
+impl Tag {
+    // Constructors
+
+    /// Create new `Self`
+    pub fn new(table: TextTagTable) -> Self {
+        // Init components
+        let current = current::new();
+        let found = found::new();
+
+        // Init tag table
+        // keep order as `current` should overwrite `found` tag style
+        // https://docs.gtk.org/gtk4/method.TextTag.set_priority.html
+        for &tag in &[&current, &found] {
+            if !table.add(tag) {
+                todo!()
+            }
+        }
+
+        // Init `Self`
+        Self { current, found }
+    }
+}

src/app/browser/window/tab/item/page/search/subject/tag/current.rs

@@ -0,0 +1,8 @@
+use gtk::{gdk::RGBA, TextTag};
+
+pub fn new() -> TextTag {
+    TextTag::builder()
+        .background_rgba(&RGBA::new(0.0, 0.4, 0.9, 1.0)) // @TODO use accent colors after adw 1.6 update
+        .foreground_rgba(&RGBA::new(1.0, 1.0, 1.0, 1.0))
+        .build()
+}

src/app/browser/window/tab/item/page/search/subject/tag/found.rs

@@ -0,0 +1,7 @@
+use gtk::{gdk::RGBA, TextTag};
+
+pub fn new() -> TextTag {
+    TextTag::builder()
+        .background_rgba(&RGBA::new(0.5, 0.5, 0.5, 0.5)) // @TODO use accent colors after adw 1.6 update
+        .build()
+}