--- /dev/null
+mask {
+ mode: alpha;
+ source: color {
+ bounds: 0 0 30 30;
+ color: red;
+ }
+ mask: color {
+ bounds: 15 15 30 30;
+ color: white;
+ }
+}
+
+mask {
+ mode: inverted-alpha;
+ source: color {
+ bounds: 50 0 30 30;
+ color: lime;
+ }
+ mask: color {
+ bounds: 65 15 30 30;
+ color: white;
+ }
+}
+
+mask {
+ mode: luminance;
+ source: color {
+ bounds: 0 50 30 30;
+ color: yellow;
+ }
+ mask: color {
+ bounds: 15 65 30 30;
+ color: white;
+ }
+}
+
+mask {
+ mode: inverted-luminance;
+ source: color {
+ bounds: 50 50 30 30;
+ color: blue;
+ }
+ mask: color {
+ bounds: 65 65 30 30;
+ color: white;
+ }
+}