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Crashed When Changing Highlighter Color / Transparency

Description

I had recently (within minutes) taken a region screenshot and was using the Highlighter tool. I was messing with the color and transparency and it crashed and gave me the following:

Software version: 1.2.9.129-RELEASE-569de711c0353860aaeb5e5ec4d272e383a101e9 (64 bit)
.NET runtime version: 4.0.30319.42000+
Time: 2019-05-17 13:17:10 -05:00
OS: unknown (x64) 6.1 build 7601 revision 10000
GDI object count: 848
User object count: 956

Exception: System.NullReferenceException
Message: Object reference not set to an instance of an object.

Stack:
at Greenshot.Drawing.FilterContainer.Draw(Graphics graphics, RenderMode rm)
at Greenshot.Drawing.DrawableContainer.DrawContent(Graphics graphics, Bitmap bmp, RenderMode renderMode, Rectangle clipRectangle)
at Greenshot.Drawing.DrawableContainerList.Draw(Graphics g, Bitmap bitmap, RenderMode renderMode, Rectangle clipRectangle)
at Greenshot.Drawing.Surface.SurfacePaint(Object sender, PaintEventArgs paintEventArgs)
at System.Windows.Forms.Control.OnPaint(PaintEventArgs e)
at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer)
at System.Windows.Forms.Control.WmPaint(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Configuration dump:

Environment

Windows 7 64bit

Status

Assignee

Unassigned

Reporter

Pat C

Affects versions

1.2.9.129

Priority

Minor