Fix readability issues with the Onboard Parameters treeview items in the light theme.
Fix readability issues with the Onboard Parameters treeview items in the light theme.

caoxiongkun/qgroundcontrol,devbharat/qgroundcontrol,RedoXyde/PX4_qGCS,TheIronBorn/qgroundcontrol,scott-eddy/qgroundcontrol,dagoodma/qgroundcontrol,cfelipesouza/qgroundcontrol,dagoodma/qgroundcontrol,kd0aij/qgroundcontrol,jy723/qgroundcontrol,mihadyuk/qgroundcontrol,ethz-asl/qgc_asl,jy723/qgroundcontrol,greenoaktree/qgroundcontrol,kd0aij/qgroundcontrol,jy723/qgroundcontrol,RedoXyde/PX4_qGCS,lis-epfl/qgroundcontrol,cfelipesouza/qgroundcontrol,mihadyuk/qgroundcontrol,CornerOfSkyline/qgroundcontrol,nado1688/qgroundcontrol,ethz-asl/qgc_asl,UAVenture/qgroundcontrol,hejunbok/qgroundcontrol,RedoXyde/PX4_qGCS,remspoor/qgroundcontrol,devbharat/qgroundcontrol,RedoXyde/PX4_qGCS,jy723/qgroundcontrol,kd0aij/qgroundcontrol,CornerOfSkyline/qgroundcontrol,UAVenture/qgroundcontrol,catch-twenty-two/qgroundcontrol,fizzaly/qgroundcontrol,BMP-TECH/qgroundcontrol,TheIronBorn/qgroundcontrol,Hunter522/qgroundcontrol,scott-eddy/qgroundcontrol,lis-epfl/qgroundcontrol,nado1688/qgroundcontrol,mihadyuk/qgroundcontrol,fizzaly/qgroundcontrol,iidioter/qgroundcontrol,dagoodma/qgroundcontrol,CornerOfSkyline/qgroundcontrol,LIKAIMO/qgroundcontrol,devbharat/qgroundcontrol,dagoodma/qgroundcontrol,cfelipesouza/qgroundcontrol,nado1688/qgroundcontrol,lis-epfl/qgroundcontrol,dagoodma/qgroundcontrol,BMP-TECH/qgroundcontrol,UAVenture/qgroundcontrol,devbharat/qgroundcontrol,UAVenture/qgroundcontrol,CornerOfSkyline/qgroundcontrol,jy723/qgroundcontrol,BMP-TECH/qgroundcontrol,scott-eddy/qgroundcontrol,scott-eddy/qgroundcontrol,BMP-TECH/qgroundcontrol,iidioter/qgroundcontrol,cfelipesouza/qgroundcontrol,ethz-asl/qgc_asl,LIKAIMO/qgroundcontrol,caoxiongkun/qgroundcontrol,devbharat/qgroundcontrol,greenoaktree/qgroundcontrol,Hunter522/qgroundcontrol,UAVenture/qgroundcontrol,mihadyuk/qgroundcontrol,fizzaly/qgroundcontrol,UAVenture/qgroundcontrol,hejunbok/qgroundcontrol,TheIronBorn/qgroundcontrol,TheIronBorn/qgroundcontrol,catch-twenty-two/qgroundcontrol,Hunter522/qgroundcontrol,CornerOfSkyline/qgroundcontrol,remspoor/qgroundcontrol,mihadyuk/qgroundcontrol,hejunbok/qgroundcontrol,caoxiongkun/qgroundcontrol,RedoXyde/PX4_qGCS,remspoor/qgroundcontrol,LIKAIMO/qgroundcontrol,greenoaktree/qgroundcontrol,fizzaly/qgroundcontrol,caoxiongkun/qgroundcontrol,BMP-TECH/qgroundcontrol,kd0aij/qgroundcontrol,remspoor/qgroundcontrol,caoxiongkun/qgroundcontrol,Hunter522/qgroundcontrol,nado1688/qgroundcontrol,TheIronBorn/qgroundcontrol,catch-twenty-two/qgroundcontrol,hejunbok/qgroundcontrol,fizzaly/qgroundcontrol,fizzaly/qgroundcontrol,kd0aij/qgroundcontrol,caoxiongkun/qgroundcontrol,greenoaktree/qgroundcontrol,LIKAIMO/qgroundcontrol,Hunter522/qgroundcontrol,scott-eddy/qgroundcontrol,iidioter/qgroundcontrol,LIKAIMO/qgroundcontrol,ethz-asl/qgc_asl,devbharat/qgroundcontrol,lis-epfl/qgroundcontrol,hejunbok/qgroundcontrol,greenoaktree/qgroundcontrol,dagoodma/qgroundcontrol,CornerOfSkyline/qgroundcontrol,RedoXyde/PX4_qGCS,hejunbok/qgroundcontrol,ethz-asl/qgc_asl,lis-epfl/qgroundcontrol,iidioter/qgroundcontrol,greenoaktree/qgroundcontrol,scott-eddy/qgroundcontrol,iidioter/qgroundcontrol,iidioter/qgroundcontrol,catch-twenty-two/qgroundcontrol,catch-twenty-two/qgroundcontrol,catch-twenty-two/qgroundcontrol,LIKAIMO/qgroundcontrol,kd0aij/qgroundcontrol,nado1688/qgroundcontrol,mihadyuk/qgroundcontrol,TheIronBorn/qgroundcontrol,BMP-TECH/qgroundcontrol,Hunter522/qgroundcontrol,remspoor/qgroundcontrol,jy723/qgroundcontrol,cfelipesouza/qgroundcontrol,cfelipesouza/qgroundcontrol,remspoor/qgroundcontrol,nado1688/qgroundcontrol