v2.12.0

- **Layer arithmetic:**
   - (Add) Allow to use ':' to define a layer range to set, eg, 0:20 to select from 0 to 20 layers
   - (Improvement) Modifications with set ROI and/or Mask(s) are only applied to target layer on that same regions
   - (Improvement) Disallow set one layer to the same layer without any modification
   - (Improvement) Clear and sanitize non-existing layers indexes
   - (Improvement) Disable the layer range selector from dialog
   - (Fix) Prevent error when using non-existing layers indexes
   - (Fix) Allow use only a mask for operations
   - (Fix) Implement the progress bar
- **File formats:**
   - (Add) VDA.ZIP (Voxeldance Additive)
   - (Improvement) Add a check to global `LightPWM` if 0 it will force to 255
   - (Improvement) Add a check to layer `LightPWM` if 0 it will force to 255
- (Add) Allow to save the selected region (ROI) to a image file
- (Update) .NET 5.0.5 to 5.0.6
- (Fix) Getting the transposed rectangle in fliped images are offseting the position by -1
- (Fix) Tools: Hide ROI Region text when empty/not selected

UVtools.Core/GCode/GCodeBuilder.cs

@@ -514,10 +514,10 @@ namespace UVtools.Core.GCode
 
                 AppendLineIfCanComment(BeginLayerComments, layerIndex, layer.PositionZ);
 
-                if (layer.CanExpose)
-                {
-                    AppendShowImageM6054(GetShowImageString(layerIndex));
-                }
+                //if (layer.CanExpose)
+                //{ Dont check this for compability
+                AppendShowImageM6054(GetShowImageString(layerIndex));
+                //}
 
                 if (liftHeight > 0 && liftZPosAbs > layer.PositionZ)
                 {
@@ -627,7 +627,7 @@ namespace UVtools.Core.GCode
             float positionZ = 0;
             for (uint layerIndex = 0; layerIndex < slicerFile.LayerCount; layerIndex++)
             {
-                var layer = slicerFile[layerIndex];
+                var layer = slicerFile[layerIndex]; 
                 if(layer is null) continue;
                 var startStr = CommandShowImageM6054.ToStringWithoutComments(GetShowImageString(layerIndex));
                 var endStr = CommandShowImageM6054.ToStringWithoutComments(GetShowImageString(layerIndex+1));