Hidden Checkbox for Actions on Hi-Res Screen

[MnFeN]

Hi-Res screens cannot show the checkbox if the Hi DPI mode (Properties > Compatibility > Hi DPI Setting) for ACT is off.

Hi DPI OFF:

Hi DPI ON:

Although the Hi DPI mode could fix this, it would cause other issues, such as the text and icons in many components (like the second line of the second image) being blurred, and ${_screenwidth} / ${_screenheight} return a smaller scaled value.

[MnFeN]

Fixed in #98