collections {
   base_scale: 1.0;
   group { "main";
      parts {
         spacer { "spacer1";
            scale: 1;
            desc { "default";
               min: 50 50;
               fixed: 1 1;
               align: 0 0;
               rel1.relative: 0.0 0.0;
               rel2.relative: 0.0 0.0;
            }
         }
         spacer { "spacer2";
            scale: 1;
            description { "default";
               min: 50 50;
               fixed: 1 1;
               align: 1 1;
               rel1.relative: 1.0 1.0;
               rel2.relative: 1.0 1.0;
            }
         }
         rect { "rect";
            desc { "default";
               rel1.to: "spacer1";
               rel1.relative: 1.0 1.0;
               rel2.to: "spacer2";
               rel2.relative: 0.0 0.0;
               color: 0 136 170 255;
            }
         }
      }
   }
}