«Santa grabadora» ayuda y mucho, pero... incluye código innecesario (por si acaso) ...
.TintAndShade = 0
... la selección de celdas...
Range("B" & inicio_1 + 9 & ":G" & inicio_1 + 9).Select
Selection.Borders(xlDiagonalDown...
... en la práctica no es necesario, ... etc.
Por ejemplo; donde tienes...
Selection.Borders(xlInsideHorizontal).LineStyle = xlNone
Range("B" & inicio_1 + 9 & ":G" & inicio_1 + 9).Select
Selection.Borders(xlDiagonalDown).LineStyle = xlNone
Selection.Borders(xlDiagonalUp).LineStyle = xlNone
With Selection.Borders(xlEdgeLeft)
.LineStyle = xlContinuous
.ColorIndex = xlAutomatic
.TintAndShade = 0
.Weight = xlMedium
End With
With Selection.Borders(xlEdgeTop)
.LineStyle = xlContinuous
.ColorIndex = xlAutomatic
.TintAndShade = 0
.Weight = xlMedium
End With
With Selection.Borders(xlEdgeBottom)
.LineStyle = xlContinuous
.ColorIndex = xlAutomatic
.TintAndShade = 0
.Weight = xlMedium
End With
With Selection.Borders(xlEdgeRight)
.LineStyle = xlContinuous
.ColorIndex = xlAutomatic
.TintAndShade = 0
.Weight = xlMedium
End With
With Selection.Borders(xlInsideVertical)
.LineStyle = xlContinuous
.ColorIndex = xlAutomatic
.TintAndShade = 0
.Weight = xlMedium
End With
Selection.Borders(xlInsideHorizontal).LineStyle = xlNone
With Selection.Interior
.Pattern = xlSolid
.PatternColorIndex = xlAutomatic
.ThemeColor = xlThemeColorDark1
.TintAndShade = -0.249946592608417
.PatternTintAndShade = 0
End With
... te bastaría depurarlo así...
With Range("B" & inicio_1 + 9 & ":G" & inicio_1 + 9)
.Borders(xlEdgeLeft).LineStyle = xlContinuous
.Borders(xlEdgeTop).LineStyle = xlContinuous
.Borders(xlEdgeBottom).LineStyle = xlContinuous
.Borders(xlEdgeRight).LineStyle = xlContinuous
.Borders(xlInsideVertical).LineStyle = xlContinuous
.Interior.Pattern = xlSolid
.Interior.ThemeColor = xlThemeColorDark1
.Interior.TintAndShade = -0.249946592608417
End With
... para obtener el mismo resultado.
►Yo trabajaría con una plantilla que integrase ya los formatos necesarios (incluso los textos fijos) y me evitaría construirlos cada vez.