float alpha = 0.5F;
int x1 = x + drawAreaSizeX;
int y1 = y + drawAreaSizeY;
GlStateManager.enableBlend();
GlStateManager.enableAlpha();
GlStateManager.disableTexture2D();
GlStateManager.color(0, 0, 0, alpha);
Tessellator tessellator = Tessellator.getInstance();
BufferBuilder bufferBuilder =...