1. When you setup your Windows scaling settings (we are using Windows 10 Pro as an example), you can choose to make everything bigger, for example:

Upon changing this setting, you'll be prompted to fix apps that are blurry:

Clicking "Apply" here will allow you to turn on the Fix-Blurry setting if you wish, for example:

2. You can also choose to setup your Spire shortcut (right-click, select Properties) with Compatibility-tab settings under the "Change high DPI settings" section to Override with System settings:

3. Depending on how you setup your settings, you can change the look of Spire, both the object sizes and font sizes/clarity.  You can experiment with different settings, but common examples are provided herein.  Note if you move your Spire window to a secondary monitor that uses different scaling settings, it will most likely look different than these examples.

a. Fix-Blurry OFF, Override OFF

b. Fix-Blurry ON, Override OFF

c. Fix-Blurry OFF, Override ON

d. Fix-Blurry ON, Override ON

You can see when the Override is ON, the Fix-Blurry setting doesn't make too much of a difference, if any.