nvda

4e2f6dc5 - increase magnifier zoom level to 5000% and change zoom to percentages (#20139)

increase magnifier zoom level to 5000% and change zoom to percentages (#20139) Fixes #19486 Summary of the issue: the magnifier zoom level is capped at 10x, which quite low the dropdown list of zoom in settings is quite awkward, particularly with more options Description of user facing changes: higher zoom value (50x/5000%) zoom is a percentage now the zoom setting is a spin control rather than a drop down. Description of developer facing changes: Added a StepSpinCtrl that allows step values for integer spin controls Description of development approach: Use integer zoom percentage values as wx.spinctrldouble is inaccessible