Fixed a problem in which pressing the right mouse button immediately after selecting an ArtMesh on the canvas would cause the mesh to enter mesh edit mode.
Fixed a bug that frequently prevented clicking within the target version combo box in the upper left corner of the editor.
Fixed a bug that prevented some editors from opening the physics settings editor.
Fixed a problem in the Physics Settings Editor where parameters with the same name could not be set for input and output.
Added the ability to set colors and reset colors in the parameter folder.
Added export of display aid file (cdi3.json) to moc3 export.
Fixed a problem in which values were not applied when entering values from the keyboard in some UIs that handle decimals.
Fixed a problem in which “Change” of a parameter could not be executed if there was an object in the selected objects that was not associated with the parameter.
You can also download the latest Cubism Editor here. I'd say just try it out.* The update history of the Cubism 4 series is as follows. It's not a failsafe method for all pictures and can get messy especially with very complicated background as well. Depending on the background, you might be able to do something with these tools. E.g., with one, you can paint over a certain place and the site calculates what might go there based on surrounding pixels, for another one, you can mark a certain area and then drag something from another place of the image in there. They're under that "bandaid symbol" (the site isn't in English for me so not sure what they're called) and each of them does something different.
Alternative: there are correction tools.
This doesn't work with more complicated backgrounds though unless you're really good at painting. Get the color from the background surrounding the text, then carefully paint over it.
If the text is further in the middle or cropping isn't possible but the background is simple (e.g., just one color), you can just draw over it.
If the text is at the side somewhere, try cropping.
There are several ways, depending on where the text is and what the background is: