fix: Show brightness/color only if keyboard supports it

If no backlight, LEDs tab isn't shown.

Author: ids1024

src/backlight.rs

@@ -295,11 +295,11 @@ impl Backlight {
         } else if row == &*inner.speed_row {
             layout.meta.has_mode && self.mode().has_speed
         } else if row == &*inner.color_row {
-            !layout.meta.has_mode || self.mode().has_hue
+            layout.meta.has_color && (!layout.meta.has_mode || self.mode().has_hue)
         } else if row == &*inner.saturation_row {
             !self.mode().has_hue && !self.mode().is_disabled()
         } else if row == &*inner.brightness_row {
-            !layout.meta.has_mode || !self.mode().is_disabled()
+            layout.meta.has_brightness && (!layout.meta.has_mode || !self.mode().is_disabled())
         } else {
             true
         }

src/keyboard.rs

@@ -208,24 +208,26 @@ impl Keyboard {
         keyboard
             .bind_property("selected", &backlight, "selected")
             .build();
-        stack.add_titled(
-            &cascade! {
-                gtk::Box::new(gtk::Orientation::Vertical, 32);
-                ..add(&cascade! {
-                    gtk::Label::new(Some(concat!(
-                        "Select a key on the keymap to change its settings. ",
-                        "Choose per key Solid Pattern to customize each key's LED color. ",
-                        "Shift + click to select more than one key. ",
-                        "Your settings are automatically saved to firmware.")));
-                    ..set_line_wrap(true);
-                    ..set_max_width_chars(100);
-                    ..set_halign(gtk::Align::Center);
-                });
-                ..add(&backlight);
-            },
-            "leds",
-            "LEDs",
-        );
+        if board.layout().meta.has_brightness {
+            stack.add_titled(
+                &cascade! {
+                    gtk::Box::new(gtk::Orientation::Vertical, 32);
+                    ..add(&cascade! {
+                        gtk::Label::new(Some(concat!(
+                            "Select a key on the keymap to change its settings. ",
+                            "Choose per key Solid Pattern to customize each key's LED color. ",
+                            "Shift + click to select more than one key. ",
+                            "Your settings are automatically saved to firmware.")));
+                        ..set_line_wrap(true);
+                        ..set_max_width_chars(100);
+                        ..set_halign(gtk::Align::Center);
+                    });
+                    ..add(&backlight);
+                },
+                "leds",
+                "LEDs",
+            );
+        }
 
         keyboard.inner().board.set(board);
         keyboard.inner().backlight.set(backlight);