GLES2: Fix typo in project setting

It used a different name than the equivalent GLES3 parameter.

doc/classes/AnimationNodeBlendSpace2D.xml

@@ -126,6 +126,12 @@
 		<member name="y_label" type="String" setter="set_y_label" getter="get_y_label">
 		</member>
 	</members>
+	<signals>
+		<signal name="triangles_updated">
+			<description>
+			</description>
+		</signal>
+	</signals>
 	<constants>
 		<constant name="BLEND_MODE_INTERPOLATED" value="0" enum="BlendMode">
 		</constant>

drivers/gles2/rasterizer_canvas_gles2.cpp

@@ -1826,8 +1826,8 @@ void RasterizerCanvasGLES2::initialize() {
 
 		glBindBuffer(GL_ARRAY_BUFFER, 0);
 
-		uint32_t index_size = GLOBAL_DEF("rendering/limits/buffers/canvas_polygon_index_size_kb", 128);
-		ProjectSettings::get_singleton()->set_custom_property_info("rendering/limits/buffers/canvas_polygon_index_size_kb", PropertyInfo(Variant::INT, "rendering/limits/buffers/canvas_polygon_index_size_kb", PROPERTY_HINT_RANGE, "0,256,1,or_greater"));
+		uint32_t index_size = GLOBAL_DEF("rendering/limits/buffers/canvas_polygon_index_buffer_size_kb", 128);
+		ProjectSettings::get_singleton()->set_custom_property_info("rendering/limits/buffers/canvas_polygon_index_buffer_size_kb", PropertyInfo(Variant::INT, "rendering/limits/buffers/canvas_polygon_index_buffer_size_kb", PROPERTY_HINT_RANGE, "0,256,1,or_greater"));
 		index_size *= 1024; // kb
 		glGenBuffers(1, &data.polygon_index_buffer);
 		glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, data.polygon_index_buffer);