LibGUI+WindowServer: Tweak hover shadows slightly

Move the shadow 1 more pixel away from the unhovered icon location,
making a total 2 pixel distance between the icon and the shadow.
Also tweak the shadow color to be a darkened variant of the base color
underneath the icon.

Libraries/LibGUI/Button.cpp

@@ -65,8 +65,8 @@ void Button::paint_event(PaintEvent& event)
  if (is_being_pressed() || is_checked())
  painter.translate(1, 1);
  else if (m_icon && is_enabled() && is_hovered() && button_style() == Gfx::ButtonStyle::CoolBar) {
- auto shadow_color = palette().threed_shadow1();
- painter.blit_filtered(icon_location, *m_icon, m_icon->rect(), [&shadow_color](auto) {
+ auto shadow_color = palette().button().darkened(0.7f);
+ painter.blit_filtered(icon_location.translated(1, 1), *m_icon, m_icon->rect(), [&shadow_color](auto) {
  return shadow_color;
  });
  icon_location.move_by(-1, -1);

Services/WindowServer/Menu.cpp

@@ -248,9 +248,8 @@ void Menu::draw()
  icon_rect.center_vertically_within(text_rect);
 
  if (&item == hovered_item() && item.is_enabled()) {
- auto shadow_color = palette.threed_shadow1();
- shadow_color = palette.menu_selection().darkened();
- painter.blit_filtered(icon_rect.location(), *item.icon(), item.icon()->rect(), [&shadow_color](auto) {
+ auto shadow_color = palette.menu_selection().darkened(0.7f);
+ painter.blit_filtered(icon_rect.location().translated(1, 1), *item.icon(), item.icon()->rect(), [&shadow_color](auto) {
  return shadow_color;
  });
  icon_rect.move_by(-1, -1);