- wxColor darker1_colour = wxAuiStepColour(m_base_colour, 85);
- wxColor darker2_colour = wxAuiStepColour(m_base_colour, 75);
- wxColor darker3_colour = wxAuiStepColour(m_base_colour, 60);
- wxColor darker4_colour = wxAuiStepColour(m_base_colour, 50);
- wxColor darker5_colour = wxAuiStepColour(m_base_colour, 40);
+ wxColor darker1_colour = m_base_colour.ChangeLightness(85);
+ wxColor darker2_colour = m_base_colour.ChangeLightness(75);
+ wxColor darker3_colour = m_base_colour.ChangeLightness(60);
+ wxColor darker4_colour = m_base_colour.ChangeLightness(50);
+ wxColor darker5_colour = m_base_colour.ChangeLightness(40);