message: [terminal_view] Adapt to API (un)signedness changes.
diff: @@ -195,21 +195,21 @@ void DecorationRenderer::rebuild()
  } // }}}
  { // {{{ framed
  auto const cellHeight = screenCoordinates_.cellHeight;
  - auto const thickness = max(lineThickness_ * width / 20, 1u);
  + auto const thickness = max(lineThickness_ * width / 20, 1);
  auto image = atlas::Buffer(width * cellHeight, 0u);
  auto const gap = thickness;
  // Draws the top and bottom horizontal lines
  - for (unsigned y = gap; y < thickness + gap; ++y)
  - for (unsigned x = gap; x < width - gap; ++x)
  + for (int y = gap; y < thickness + gap; ++y)
  + for (int x = gap; x < width - gap; ++x)
  {
  image[y * width + x] = 0xFF;
  image[(cellHeight - 1 - y) * width + x] = 0xFF;
  }
  // Draws the left and right vertical lines
  - for (unsigned y = gap; y < cellHeight - gap; y++)
  - for (unsigned x = gap; x < thickness + gap; ++x)
  + for (int y = gap; y < cellHeight - gap; y++)
  + for (int x = gap; x < thickness + gap; ++x)
  {
  image[y * width + x] = 0xFF;
  image[y * width + (width - 1 - x)] = 0xFF;
  