res: add btn_{left,mid,right}

res/CMakeLists.txt

@@ -268,6 +268,30 @@ sprite(NAME tree
     CY 496
     TRANSPARENT TRUE)
 
+sprite(NAME btn_left
+    X 376
+    Y 80
+    BPP 4
+    CX 368
+    CY 495
+    TRANSPARENT TRUE)
+
+sprite(NAME btn_right
+    X 376
+    Y 106
+    BPP 4
+    CX 368
+    CY 494
+    TRANSPARENT TRUE)
+
+sprite(NAME btn_mid
+    X 368
+    Y 122
+    BPP 4
+    CX 368
+    CY 493
+    TRANSPARENT FALSE)
+
 sound(NAME acknowledge_01)
 sound(NAME acknowledge_02)
 sound(NAME selected_01)
@@ -275,6 +299,9 @@ sound(NAME selected_01)
 container(NAME rts
     SPRITES
         barracks
+        btn_left
+        btn_mid
+        btn_right
         worker_n
         worker_ne
         worker_e

res/LICENSE

@@ -45,6 +45,12 @@ sel_down_right.bmp:
 sel_down_right_24.bmp:
 sel_mid.bmp:
 sel_mid_24.bmp:
+btn_left.bmp:
+btn_left_24.bmp:
+btn_mid.bmp:
+btn_mid_24.bmp:
+btn_right.bmp:
+btn_right_24.bmp:
     Derived works from ui_sheet.png
 
 font.bmp: