Update some docs

Signed-off-by: falkTX <falktx@falktx.com>

docs/DIFFERENCES.md

@@ -35,13 +35,13 @@ Bellow follows a list of features comparing the official plugin to Cardinal.
 | Synth plugin variant           | 16 ins, 16 outs           | 2 ins, 2 outs                   | |
 | FX plugin variant              | 16 ins, 16 outs           | 2 ins, 2 outs                   | |
 | Raw-CV plugin variant          | Unsupported               | 8 audio IO + 10 CV IO           | Available in JACK, LV2 and VST3 formats, not possible in AU and VST2 |
-| Arbitrary parameter automation | Yes                       | No                              | |
+| Arbitrary parameter automation | Yes                       | No (*)                          | Static 24 automatable params, use Host Params/Map modules to map them to module parameters |
 | Integrated plugin host         | No, Host payed separately | Yes, using Carla or Ildaeil     | |
 | Host sync/timing               | Using MIDI signals        | Using dedicated module          | |
 | Linux/X11 event handling       | Runs on 2nd thread        | Runs on main/GUI thread         | |
 | v1 module compatibility        | No                        | No, but with less restrictions  | Module widgets can load resources at any point |
 | Online phone-home              | Yes                       | No                              | Online access is strictly forbidden in Cardinal |
-| Proper dark theme              | No, only room brightness  | Yes                             | All dark panel variants have explicit permission when required |
+| Proper dark theme              | WIP                       | Yes                             | All dark panel variants have explicit permission when required |
 | Proper Linux headless mode     | No, always requires X11   | Yes                             | |
 
 Additionally, Cardinal contains the following built-in modules not present in the official plugin or standalone:
@@ -50,6 +50,7 @@ Additionally, Cardinal contains the following built-in modules not present in th
  * Mog (never updated to v2)
  * mscHack (never updated to v2)
  * rackwindows
+ * AIDA-X
  * Audio File
  * Audio to CV Pitch converter
  * Carla Plugin Host

docs/FAQ.md

@@ -43,10 +43,16 @@ where we discuss possible modules to include.
 
 ## Changes are lost on restart
 
-This is intentional.  
-Cardinal is meant to be a self-contained plugin, and as such it does not save any files whatsoever.
-This includes user preferences (like list of favourites) or last used project.  
-As a plugin, the state will be saved together with the host/DAW project.
+This is intentional. Unlike VCV Rack, Cardinal does not automatically save.
+
+Also, different variants (main vs FX vs Synth) use different files for saving their settings, so there might be some confusion arising from that.  
+But on the other hand this allows you to have a different template and other defaults per variant, which is quite handy.
+
+## Scaling/High-DPI not working properly, how to fix it?
+
+Cardinal, using [DPF](https://github.com/DISTRHO/DPF), will try to automatically detect the system scaling and adjust to that.  
+On cases where that does not work you can set `DPF_SCALE_FACTOR` environment variable to a value of your choosing in order to force a custom scale factor.  
+Note that this applies to all DPF-based plugins and not just Cardinal.
 
 ## On BSD/Linux/X11 the menu item "Save As/Export..." does nothing