非PNG檔製作去背ICO

先用去背程式去背再存成PNG格式再轉成ICO

轉 ICO Program  http://www.pic2icon.com/zh-tw/format_conversion.php

vb.net 畫直線與繪圖顏色

下繪一橫紅線 ( 資料來源 )

 Private Sub Form1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint
        Dim g As Graphics = e.Graphics
        Dim redpen As Pen = New Pen(Color.Red, 3)
        g.DrawLine(redpen, 0, 90, 285, 90)
    End Sub

顏色可參考下