Nein, du musst in dem fall schon was am plasma Theme ändern.
[Colors:Selection]
BackgroundAlternate=0,0,0
BackgroundNormal=0,0,0
DecorationFocus=255,255,255
DecorationHover=255,255,255
ForegroundActive=255,255,255
ForegroundInactive=255,255,255
ForegroundLink=255,255,255
ForegroundNegative=255,255,255
ForegroundNeutral=255,255,255
ForegroundNormal=255,255,255
ForegroundPositive=255,255,255
ForegroundVisited=255,255,255
[Colors:Tooltip]
BackgroundAlternate=0,0,0
BackgroundNormal=0,0,0
DecorationFocus=0,0,0
DecorationHover=0,0,0
ForegroundActive=0,0,0
ForegroundInactive=0,0,0
ForegroundLink=0,0,0
ForegroundNegative=0,0,0
ForegroundNeutral=0,0,0
ForegroundNormal=0,0,0
ForegroundPositive=0,0,0
ForegroundVisited=0,0,0
[Colors:View]
BackgroundAlternate=36,35,35
BackgroundNormal=45,45,45
DecorationFocus=93,143,190
DecorationHover=115,154,190
ForegroundActive=240,240,240
ForegroundInactive=120,119,117
ForegroundLink=80,142,216
ForegroundNegative=232,88,72
ForegroundNeutral=115,155,190
ForegroundNormal=230,230,230
ForegroundPositive=120,183,83
ForegroundVisited=142,121,165
[Colors:Window]
BackgroundAlternate=0,0,0
BackgroundNormal=0,0,0
DecorationFocus=255,255,255
DecorationHover=255,255,255
ForegroundActive=255,255,255
ForegroundInactive=255,255,255
ForegroundLink=255,255,255
ForegroundNegative=255,255,255
ForegroundNeutral=255,255,255
ForegroundNormal=255,255,255
ForegroundPositive=255,255,255
ForegroundVisited=255,255,255
speichern unter
/home/$USER/.kde/share/apps/desktoptheme/Sally_new/colors
dann
~/.kde/cache-kookii/plasma_theme_default.kcache
entfernen, ausloggen, neu einloggen. Dann sollen™ die Schriften hell sein. Aber da Air sehr sehr transparent ist, nutz lieber ein dunkles Theme. Dann hast du auch nicht so das Problem mit weiß auf weiß. Oxygen ist schrecklich.