Index: contrib/theme_installer.py
==================================================================
--- contrib/theme_installer.py
+++ contrib/theme_installer.py
@@ -2,11 +2,11 @@
 # api: streamtuner2
 # title: Gtk2 theme installer
 # description: Shows themes in the bookmarks pane for installation
 # type: feature
 # category: ui
-# version: 0.4.2
+# version: 0.5
 # priority: experimental
 #
 # Downloads a list of Gtk themes and presents it in the bookmarks
 # tab under... »themes«. Double clicking will download and install
 # a theme right away.
@@ -17,16 +17,12 @@
 # It only handles Gtk2 themes currently.
 #
 # Reuses the `conf.theme` setting from the `gtk_theme` plugin, and
 # should work in conjunction to it.
 #
-# The theme repository is a CSV file of:
-#   themepkg.zip, theme.png, Title, Author, http://homepage/
-# with the packages residing next to it.
-#
-# Using a repo.json works better however, and would allow to
-# integrate it with the regular plugin manager somewhen.
+# Using a repo.json-style format, which mirrors the station row{}
+# layout however. Allows later integration with pluginmanager2...
 # The bookmark/themes channel provides the nicer UI however.
 #
 # A theme.zip should contain a structure like:
 #    ---------  ---------- -----   ----
 #        62937  2016-12-12 16:39   librezlooks.dll
@@ -44,10 +40,11 @@
 import zipfile
 import re
 import json
 import ahttp
 from config import *
+from config import pluginconf
 import uikit
 from compat2and3 import *
 import action
 import channels.favicon as fi
 
@@ -125,21 +122,12 @@
                     listformat = "href"
                 )
                 # add
                 r.append(d)
 
-        # filter on properties
-        d_platform = "win32" if conf.windows else "linux"
-        d_gtk = "gtk2" if uikit.ver == 2 else "gtk3"
-        for i,d in enumerate(r):
-            if not d.get("depends"):
-                continue
-            for dep in re.split("\s*,\s*", d["depends"]):
-                if dep in ("gtk", "streamtuner2", "theme_installer", "gtk2|gtk3", "win32|linux"):
-                    continue
-                if not dep in (d_platform, d_gtk):
-                    del r[i]
+        # filter on depends: (such as "gtk => 2.0, win32")
+        r = [d for d in r if self.deps(d)]
 
         # convert relative references
         for d in r:
             for field in ("url", "img", '$file'):
                 v = str(d.get(field))
@@ -219,5 +207,21 @@
 
     # delete theme engine dll
     def clear_dll(self, dll):
         for fn in dll:
             os.remove(self.theme_dir + fn)
+
+    # instantiate pluginconf.dependency()
+    def deps(self, theme):
+        d = pluginconf.dependency()
+        d.have.update(dict([name, {"version": str(ver)}] for name,ver in [
+            ("gtk", ".".join(str(i) for i in uikit.gtk.gtk_version)),
+            ("gtk2", "2" if uikit.ver == 2 else "-1"),
+            ("gtk3", "3" if uikit.ver == 3 else "-1"),
+            ("linux", "-1" if conf.windows else "4.0.0"),
+            ("win32", "6.1" if conf.windows else "-1")
+        ]))
+        #log.HAVE(dict((k,d.have[k].get("version")) for k in d.have))
+        self.deps = d.depends
+        return self.deps(theme)
+
+    

Index: pluginconf.py
==================================================================
--- pluginconf.py
+++ pluginconf.py
@@ -397,11 +397,12 @@
 # for application-level modules.
 #
 class dependency(object):
 
     # prepare list of known plugins and versions
-    def __init__(self):
+    def __init__(self, core={}):
+        self.have = {}.update(core)
         self.have = all_plugin_meta()
         # dependencies on core modules are somewhat more interesting:
         for name in ("st2", "uikit", "config", "action"):
             self.have[name] = plugin_meta(module=name, extra_base=["config"])
         self.have["streamtuner2"] = self.have["st2"]
@@ -459,10 +460,11 @@
                 "==": curr == ver,
                 ">":  curr > ver,
                 "<":  curr < ver,
                 "!=": curr != ver,
             }
+            #log.VERSION_COMPARE(name, " → (", curr, op, ver, ") == ", r)
             r &= tbl.get(op, True)
         return r
 
 
 # Add plugin defaults to conf.* store