-\define@key{buildMesh}{color}[black]{\def\luameshval@color{#1}}%
-
-\presetkeys{buildMesh}{tikz=false,bbox=none,scale, meshpoint,mode=int,print=none,picture=full,color}{}%
+\define@key{buildMesh}{color}[black]{\def\luameshval@bm@color{#1}}%
+%% the name of the color of drawing the bbox
+\define@key{buildMesh}{colorBbox}[black]{\def\luameshval@bm@colorbbox{#1}}%
+%
+\presetkeys{buildMesh}{tikz=false,bbox=none,scale, meshpoint,mode=int,print=none,color,colorBbox}{}%