Color header based on mark and pane focus state, for dramatic effect!

src/interactive/widgets/header.rs

@@ -1,4 +1,3 @@
-use crate::interactive::widgets::COLOR_MARKED_LIGHT;
 use tui::{
     buffer::Buffer,
     layout::Rect,
@@ -9,12 +8,7 @@ use tui::{
 pub struct Header;
 
 impl Header {
-    pub fn render(&self, has_marked_entries: bool, area: Rect, buf: &mut Buffer) {
-        let bg_color = if has_marked_entries {
-            COLOR_MARKED_LIGHT
-        } else {
-            Color::White
-        };
+    pub fn render(&self, bg_color: Color, area: Rect, buf: &mut Buffer) {
         let text_color = Color::Black;
         let standard = Style {
             fg: text_color,

src/interactive/widgets/main.rs

@@ -1,7 +1,7 @@
 use crate::interactive::{
     widgets::{
         Entries, EntriesProps, Footer, FooterProps, Header, HelpPane, HelpPaneProps, MarkPane,
-        MarkPaneProps,
+        MarkPaneProps, COLOR_MARKED_LIGHT,
     },
     AppState, DisplayOptions, FocussedPane,
 };
@@ -47,6 +47,7 @@ impl MainWindow {
             display,
             state,
         } = props.borrow();
+
         let regions = Layout::default()
             .direction(Direction::Vertical)
             .constraints([Length(1), Max(256), Length(1)].as_ref())
@@ -75,6 +76,7 @@ impl MainWindow {
                 (None, None) => (entries_area, None, None),
             }
         };
+
         let grey = Style {
             fg: Color::DarkGray,
             bg: Color::Reset,
@@ -90,7 +92,13 @@ impl MainWindow {
             Mark => (grey, grey, white),
         };
 
-        Header.render(!state.marked.is_empty(), header_area, buf);
+        let bg_color = match (state.marked.is_empty(), state.focussed) {
+            (false, FocussedPane::Mark) => Color::LightRed,
+            (false, _) => COLOR_MARKED_LIGHT,
+            (true, _) => Color::White,
+        };
+        Header.render(bg_color, header_area, buf);
+
         let props = EntriesProps {
             tree: &tree,
             root: state.root,