If you want clearer sliders in the mixer that point to the instrument.
Put this in C:\bb\Data\Images\MainScreenButtons\MIXER_IMAGES
or whatever skin you are using
make a backup of original SliderThumb_s1_m3.bmp
right click SliderThumb_s1_m3.bmp below and Save Link/Target As

Attached Files (Click to download or enlarge) (Only available when you are logged in)
SliderThumb_s1_m3.bmp (3.01 KB, 18 downloads)
BB21-Mixer-Slider-Arrows.png (40.81 KB, 168 downloads)