tessellator.addVertexWithUV(this.maxX, this.minY + margin, 0.0D, 1.0D, 1.0D);
tessellator.setColorRGBA_I(0, 255);
tessellator.addVertexWithUV(this.maxX, this.minY, 0.0D, 1.0D, 0.0D);
tessellator.addVertexWithUV(this.minX, this.minY, 0.0D, 0.0D, 0.0D);
tessellator.draw();
tessellator.startDrawingQuads();
tessellator.setColorRGBA_I(0, 255);
tessellator.addVertexWithUV(this.minX, this.maxY, 0.0D, 0.0D, 1.0D);
tessellator.addVertexWithUV(this.maxX, this.maxY, 0.0D, 1.0D, 1.0D);
tessellator.setColorRGBA_I(0, 0);
tessellator.addVertexWithUV(this.maxX, this.maxY - margin, 0.0D, 1.0D, 0.0D);