LibVT: Unbreak semi-transparent terminal background painting

I broke semi-transparent terminals when I added support for alpha
blending to Painter::fill_rect().

When we fill the terminal widget background, we don't want blending to
take place, we're just looking to replace with an exact color, so now
we can use Painter::clear_rect() for that.

1 files changed, 2 insertions, 2 deletions

diff --git a/Libraries/LibVT/TerminalWidget.cpp b/Libraries/LibVT/TerminalWidget.cpp
index d498e70048..027970efa3 100644
--- a/Libraries/LibVT/TerminalWidget.cpp
+++ b/Libraries/LibVT/TerminalWidget.cpp
@@ -260,9 +260,9 @@ void TerminalWidget::paint_event(GPaintEvent& event)
     painter.add_clip_rect(terminal_buffer_rect);
 
     if (m_visual_beep_timer->is_active())
-        painter.fill_rect(frame_inner_rect(), Color::Red);
+        painter.clear_rect(frame_inner_rect(), Color::Red);
     else
-        painter.fill_rect(frame_inner_rect(), Color(Color::Black).with_alpha(m_opacity));
+        painter.clear_rect(frame_inner_rect(), Color(Color::Black).with_alpha(m_opacity));
     invalidate_cursor();
 
     int rows_from_history = 0;