TH - finally change default background for flat theme

data/elementary/themes/edc/background.edc

@@ -1,19 +1,17 @@
 group { name: "e/desktop/background";
-   images.image: "bg_radgrad.png" COMP;
-   images.image: "dot_pattern.png" COMP;
+   alias: "elm/ews/background/default";
+   BACKGROUND_IMG
    parts {
-      part { name: "bg";
+      part { name: "clip"; type: RECT; mouse_events: 0;
          description { state: "default" 0.0;
-            image.normal: "bg_radgrad.png";
-            image.scale_hint: STATIC;
-            fill.smooth: 0;
-            ASPECT_FILL((1024/653))
          }
       }
-      part { name: "pat";
+      part { name: "bg";
+         clip_to: "clip";
          description { state: "default" 0.0;
-            image.normal: "dot_pattern.png";
-            TILED_PATTERN(256, 256)
+            image.normal: "background";
+            image.scale_hint: STATIC;
+            ASPECT_FILL((7680/4320))
          }
       }
    }

data/elementary/themes/edc/elm/ews.edc

@@ -1,24 +1,3 @@
-group { name: "elm/ews/background/default";
-   images.image: "bg_radgrad.png" COMP;
-   images.image: "dot_pattern.png" COMP;
-   parts {
-      part { name: "bg";
-         description { state: "default" 0.0;
-            image.normal: "bg_radgrad.png";
-            image.scale_hint: STATIC;
-            fill.smooth: 0;
-            ASPECT_FILL((1024/653))
-         }
-      }
-      part { name: "pat";
-         description { state: "default" 0.0;
-            image.normal: "dot_pattern.png";
-            TILED_PATTERN(256, 256)
-         }
-      }
-   }
-}
-
 group { name: "elm/ews/decoration/default";
    images.image: "win_shadow.png" COMP;
    images.image: "win_glow.png" COMP;

data/elementary/themes/edc/wizard.edc

@@ -1,7 +1,6 @@
 group { name: "e/wizard/main";
+   BACKGROUND_IMG
    images.image: "screen_circular_shadow.png" COMP;
-   images.image: "bg_radgrad.png" COMP;
-   images.image: "dot_pattern.png" COMP;
    images.image: "button_normal.png" COMP;
    images.image: "button_clicked.png" COMP;
    images.image: "knob_round_busy.png" COMP;
@@ -12,17 +11,11 @@ group { name: "e/wizard/main";
          }
       }
       part { name: "bg";
+         clip_to: "clip";
          description { state: "default" 0.0;
-            image.normal: "bg_radgrad.png";
+            image.normal: "background";
             image.scale_hint: STATIC;
-            fill.smooth: 0;
-            ASPECT_FILL((1024/653))
-         }
-      }
-      part { name: "pat";
-         description { state: "default" 0.0;
-            image.normal: "dot_pattern.png";
-            TILED_PATTERN(256, 256)
+            ASPECT_FILL((7680/4320))
          }
       }
       part { name: "busy_clip"; type: RECT;
@@ -312,26 +305,19 @@ group { name: "e/wizard/firstpage";
 }
 
 group { name: "e/wizard/extra";
+   BACKGROUND_IMG
    images.image: "screen_circular_shadow.png" COMP;
-   images.image: "bg_radgrad.png" COMP;
-   images.image: "dot_pattern.png" COMP;
    parts {
       part { name: "clip"; type: RECT; mouse_events: 0;
          description { state: "default" 0.0;
          }
       }
       part { name: "bg";
+         clip_to: "clip";
          description { state: "default" 0.0;
-            image.normal: "bg_radgrad.png";
+            image.normal: "background";
             image.scale_hint: STATIC;
-            fill.smooth: 0;
-            ASPECT_FILL((1024/653))
-         }
-      }
-      part { name: "pat";
-         description { state: "default" 0.0;
-            image.normal: "dot_pattern.png";
-            TILED_PATTERN(256, 256)
+            ASPECT_FILL((7680/4320))
          }
       }
       part { name: "shadow"; mouse_events: 0;

data/elementary/themes/macros.edc

@@ -7,6 +7,21 @@
 #define FIXED_SIZE(_WIDTH, _HEIGHT) \
    min: _WIDTH _HEIGHT; max: _WIDTH _HEIGHT; fixed: 1 1;
 
+
+#define BACKGROUND_COMP LOSSY 99
+//#define BACKGROUND_COMP LOSSY_ETC1
+//#define BACKGROUND_COMP LOSSY_ETC2
+#define BACKGROUND_IMG \
+   set { name: "background"; \
+     image { image: "p-5120.png" BACKGROUND_COMP; size: 3841 2161 51200 28800; } \
+     image { image: "p-3840.png" BACKGROUND_COMP; size: 3201 1801  3840  2160; } \
+     image { image: "p-3200.png" BACKGROUND_COMP; size: 2561 1441  3200  1800; } \
+     image { image: "p-2560.png" BACKGROUND_COMP; size: 1921 1081  2560  1440; } \
+     image { image: "p-1920.png" BACKGROUND_COMP; size: 1601  900  1920  1080; } \
+     image { image: "p-1600.png" BACKGROUND_COMP; size: 1281  721  1600   900; } \
+     image { image: "p-1280.png" BACKGROUND_COMP; size:    0    0  1280   720; } \
+   }
+
 #define DARK_GREY_BG_COLOR 48 48 48 255
 #define DARK_GREY_BG_DISABLED_COLOR 64 64 64 255