initialize variables in initializer list

Change-Id: I1526d40c28a33cd29074adcc8c8d182f92996914
remove more unnecessary typedefs

Change-Id: I62968f11220da31febdbdff2d057607696ea6271
change the color of the bars as the ackground is blue as well

Change-Id: Ib16ef3548368e5b07dd9411a4515d5e6abe3acaf
we need to call OpenGL3DRenderer::init

Change-Id: I9bcdc7d033835bf3cdb6f9d4770aaee284f7eaf7