Launching the phBalance hook, will show a user interface similar to the
following:

  --------------------------------------------------------------
  |             phBalance V1.0, © 1995 Paul Huxham             |
  |                                                            |
  | R ==========*==========+0      Presets      Functions      |
  |                                                            |
  | G ==========*==========+0      1    2         Reset        |
  |                                                            |
  | B ==========*==========+0      3    4         Store        |
  |                                                            |
  | H ==========*==========+0      5    6         Load         |
  |                                                            |
  | S ==========*==========+0      7    8         Save         |
  |                                                            |
  | L ==========*==========+0      9    10        Default      |
  |                                                            |
  | V ==========*==========+0                                  |
  |                                                            |
  |Co ==========*==========+0                                  |
  |                                                            |
  |Ga ==========*==========+0                                  |
  |                                                            |
  |    Do & Close           Do & Stay           Close          |
  --------------------------------------------------------------

The RGB, HSL and V, Co, Ga sliders are for the Red, Green, Blue, Hue,
Saturation, Luminance, Brightness, Contrast and Gamma respectively. These
operate the same as the inbuilt ImageFX balance function.

The "Do & Close" gadget will apply the slider settings to the image and
then leave phBalance.

The "Do & Stay" gadget will apply the settings but not close the phBalance
window, so you can contintually adjust the image until you are satisfied.

The "Close" gadget closes the phBalance window without doing anything.

Reset" clears all the sliders to 0.

Pressing "Store" toggle the gadget. When selected, pressing a "Preset
Number" will store the slider settings 'into' that preset.

"Load" loads a preset settings file.

"Save" stores a preset settings file.

"Default" stores all the current preset settings as the defaults under the
name "ImageFX:Storage/phBalance/phBalance_prefs".

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                 5164   10536  49.0% -lh5- 58f3 Feb 10  1995 phBalance
[generic]                 1396    3819  36.6% -lh5- ce6d Feb 10  1995 phBalance.doc
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         2 files    6560   14355  45.7%            Jun  3  1995