1.5.1

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v1.5.1
- Renamed "Reset Defaults" to "Factory Reset" for Objects (was only for paths and walls before, objects were forgotten)
- Fixed the default opacity sliders (walls and paths) to be 0.6 in simple mode and 1.2 in realistic mode
- Fixed the realistic settings displayed in the Wall Tool and Path Tool (removed unused sliders and buttons and added the Blur slider)
- Fixed flickering in realistic mode when drawing paths or editing the bend
- In a multi-selection, changing an object's overlay setting will not affect all the other settings anymore
- Fixed undo not working with objects overlays after a delete
- Removed the layer choice in "Apply To All Walls" as it didn't make sense
- Added a white outline to the Apply To All choices for Paths and Walls