without seeing hte pictures its hard to tell, but you could use colour replace
if its text you could simply delte it and replace it with real text of the colour and style you want, assuming you ccan take it off the back ground
re comment of seeing the picture
if its a solib background it would be easier of course
if the font colour isnt alone in the picture then you will have to mask out the area
imagine that you import a file (picture -graph with text) and there is a graph and text on transparent background.and you wish to change only color.
From black to white it is simple- with invert (mentioned above)
but the problem arises to change in other color this marked text with lasso
I wish to change this marked text in PS (not to change color in program where is created this imported /placed file).
Sure it is harder to change the text color on imported picture with background
but in this case isn't. other background such as simple transparent..
so you want to change it all? you can use an adjustment hue/saturation layer
no with hue saturation doesn't work.
if it had been worked i wouldn't asking about it