diff --git a/INTERNALS.md b/INTERNALS.md
index 8585fb6..387f65f 100644
--- a/INTERNALS.md
+++ b/INTERNALS.md
@@ -175,12 +175,23 @@ Each continuous scale by default maps domain to `[0.0 1.0]` range. Scale can be
 (s/inverse (s/log [1 10]) 0.5)
 ;; => 3.1622776601683804
 
-(s/time-interval [(dt/local-date) (dt/local-date 2019 03 30)])
-;; => #charts.scale.ContinuousRange{:start #object[java.time.LocalDate 0x6025234c "2019-03-28"], :end #object[java.time.LocalDate 0x60e60a32 "2019-03-30"], :type :time, :forward #function[charts.scale/time-forward/fn--23480], :inverse #function[charts.scale/time-inverse/fn--23483], :info {:time-diff-millis 1.728E8}}
-((s/time-interval [(dt/local-date-time "2019-03-01T00:00:00") (dt/local-date-time "2019-03-03T00:00:00")]) (dt/local-date "2019-03-02"))
-;; => 0.5
-(s/inverse (s/time-interval [(dt/local-date-time "2019-03-01T00:00:00") (dt/local-date-time "2019-03-03T00:00:00")]) 0.1)
-;; => #object[java.time.LocalDateTime 0x5e3ff815 "2019-03-01T04:48"]
+(t/time-scale [(dt/local-date) (dt/local-date 2019 03 30)])
+;; =>
+{:start #object[java.time.LocalDateTime 0x21613dd9 "2020-04-09T00:00"],
+ :end #object[java.time.LocalDateTime 0x5c9ee492 "2019-03-30T00:00"],
+ :domain
+ [#object[java.time.LocalDateTime 0x21613dd9 "2020-04-09T00:00"]
+  #object[java.time.LocalDateTime 0x5c9ee492 "2019-03-30T00:00"]],
+ :type :time,
+ :forward #function[cljplot.scale.time/time-forward/fn--14021],
+ :inverse #function[cljplot.scale.time/time-inverse/fn--14024],
+ :info {:time-diff-millis -32486400000.0M}}
+((t/time-scale [(dt/local-date-time "2019-03-01T00:00:00") (dt/local-date-time "2019-03-03T00:00:00")]) (dt/local-date "2019-03-02"))
+;; =>
+0.5
+(s/inverse (t/time-scale [(dt/local-date-time "2019-03-01T00:00:00") (dt/local-date-time "2019-03-03T00:00:00")]) 0.1)
+;; =>
+#object[java.time.LocalDateTime 0x5e3ff815 "2019-03-01T04:48"]
 ```
 
 #### Bands
@@ -195,12 +206,26 @@ Parameters are:
 * align - position of the selected point (0.0 - left, 1.0 - right, 0.5 - midpoint, default)
 
 ```
-(s/bands [:a :b])
-;; => #charts.scale.OrdinalRange{:domain [:a :b], :range ({:start 0.0, :end 0.5, :point 0.25} {:start 0.5, :end 1.0, :point 0.75}), :type :bands, :forward {:a {:start 0.0, :end 0.5, :point 0.25}, :b {:start 0.5, :end 1.0, :point 0.75}}, :inverse #function[charts.scale/bands-inverse-fn/fn--23540], :info {:bandwidth 0.5, :step 0.5, :value :point}}
-((s/bands [:a :b]) :a)
-;; => {:start 0.0, :end 0.5, :point 0.25}
-((s/bands {:padding-in 0.2 :padding-out 0.2 :align 0.25} [:a :b]) :a)
-;; => {:start 0.09090909090909091, :end 0.4545454545454546, :point 0.18181818181818182}
+(b/bands [:a :b])
+;; =>
+{:domain [:a :b],
+ :range
+ ({:start 0.0, :end 0.5, :point 0.25} {:start 0.5, :end 1.0, :point 0.75}),
+ :cnt 2,
+ :type :bands,
+ :forward
+ {:a {:start 0.0, :end 0.5, :point 0.25},
+  :b {:start 0.5, :end 1.0, :point 0.75}},
+ :inverse #function[cljplot.scale.bands/bands-inverse-fn/fn--33870],
+ :info {:bandwidth 0.5, :step 0.5}}
+((b/bands [:a :b]) :a)
+;; =>
+{:start 0.0, :end 0.5, :point 0.25}
+((b/bands [:a :b] {:padding-in 0.2 :padding-out 0.2 :align 0.25}) :a)
+;; =>
+{:start 0.09090909090909091,
+ :end 0.4545454545454546,
+ :point 0.18181818181818182}
 ```
 
 #### Scale map
diff --git a/project.clj b/project.clj
index d8aa2c3..683a3bb 100644
--- a/project.clj
+++ b/project.clj
@@ -1,4 +1,4 @@
-(defproject cljplot "0.0.3-SNAPSHOT"
+(defproject cljplot :lein-v
   :description "JVM chart library"
   :url "https://github.com/generateme/cljplot"
   :license {:name "Eclipse Public License"
@@ -9,6 +9,11 @@
                  [clojure.java-time "0.3.2"]
                  [org.clojure/data.csv "1.0.0"]
                  [org.clojure/data.json "1.0.0"]]
+  :plugins
+  [
+   ;; Drive leiningen project version from git instead of the other way around
+   [com.roomkey/lein-v "7.2.0"]
+   ]
   :repl-options {:timeout 120000}
   :java-source-paths ["src"]
   :javac-options ["-target" "1.8" "-source" "1.8"]
diff --git a/src/cljplot/axis.clj b/src/cljplot/axis.clj
index 368a7d1..8d5fd94 100644
--- a/src/cljplot/axis.clj
+++ b/src/cljplot/axis.clj
@@ -98,7 +98,7 @@
 
 (defn- find-max-tick-size
   "Find maximum tick size."
-  [{:keys [ticks]} config]
+  [scale {:keys [ticks] :as config}]
   (let [size-fn (-> config :ticks :size)]
     (max 0.0 (inc (double (-> config :line :stroke :size)))
          ^double (reduce fast-max (map #(size-fn % config) ticks)))))
diff --git a/src/cljplot/common.clj b/src/cljplot/common.clj
index ab8db8a..3eb4e0d 100644
--- a/src/cljplot/common.clj
+++ b/src/cljplot/common.clj
@@ -9,17 +9,27 @@
             [clojure.data.json :as json]
             [clojure.java.io :as io]
             [java-time :as dt]
+            [cljplot.scale.time :as t]
             [cljplot.scale :as s]))
 
 (set! *warn-on-reflection* true)
 (set! *unchecked-math* :warn-on-boxed)
 (m/use-primitive-operators)
 
-(defn fast+ {:inline (fn [^double x ^double y] `(+ ~x ~y)) :inline-arities #{2}} ^double [^double a ^double b] (+ a b))
-(defn fast- {:inline (fn [^double x ^double y] `(- ~x ~y)) :inline-arities #{2}} ^double [^double a ^double b] (- a b))
-(defn fast* {:inline (fn [^double x ^double y] `(* ~x ~y)) :inline-arities #{2}} ^double [^double a ^double b] (* a b))
-(defn fast-max {:inline (fn [^double x ^double y] `(+ ~x ~y)) :inline-arities #{2}} ^double [^double a ^double b] (max a b))
-(defn fast-min {:inline (fn [^double x ^double y] `(+ ~x ~y)) :inline-arities #{2}} ^double [^double a ^double b] (min a b))
+(defn fast+ {:inline (fn [^double x ^double y] `(+ ~x ~y)) :inline-arities #{2}}
+  ^double [^double a ^double b] (+ a b))
+
+(defn fast- {:inline (fn [^double x ^double y] `(- ~x ~y)) :inline-arities #{2}}
+  ^double [^double a ^double b] (- a b))
+
+(defn fast* {:inline (fn [^double x ^double y] `(* ~x ~y)) :inline-arities #{2}}
+  ^double [^double a ^double b] (* a b))
+
+(defn fast-max {:inline (fn [^double x ^double y] `(+ ~x ~y)) :inline-arities #{2}}
+  ^double [^double a ^double b] (max a b))
+
+(defn fast-min {:inline (fn [^double x ^double y] `(+ ~x ~y)) :inline-arities #{2}}
+  ^double [^double a ^double b] (min a b))
 
 (defn graph-canvas
   "Create canvas to draw a chart on"
@@ -63,8 +73,8 @@
 (defn wrap-interpolator-for-dt
   "Wrap interpolator to work with date/time values."
   [interpolator domain x y]
-  (if (date-time? (first x)) 
-    (let [scale (s/time-interval domain)
+  (if (date-time? (first x))
+    (let [scale (t/time-scale domain)
           interp (interpolator (mapv scale x) y)]
       (fn [v]
         (interp (scale v))))
@@ -160,7 +170,7 @@
     data))
 
 (defn coerce-format-fn
-  "Find formating funciton."
+  "Find formatting function."
   [fmt]
   (cond
     (string? fmt) (partial format fmt)
diff --git a/src/cljplot/core.clj b/src/cljplot/core.clj
index 4d3d03c..b2c29ae 100644
--- a/src/cljplot/core.clj
+++ b/src/cljplot/core.clj
@@ -1,18 +1,8 @@
 (ns cljplot.core
-  (:require [clojure2d.core :refer [next-filename]]
-            [cljplot.common :refer :all]
-            [clojure2d.extra.utils :as utils]
-            [cljplot.impl.histogram :refer :all]
-            [cljplot.build :as b]
+  (:require [cljplot.build :as b]
             [cljplot.render :as r]
-            [cljplot.impl.strips :refer :all]
-            [cljplot.impl.scatter :refer :all]
-            [cljplot.impl.line :refer :all]
-            [cljplot.impl.heatmap :refer :all]
-            [cljplot.impl.label :refer :all]
-            [cljplot.impl.math :refer :all]
-            [cljplot.impl.free :refer :all]
-            [cljplot.impl.time-series :refer :all]))
+            [clojure2d.core :refer [next-filename]]
+            [clojure2d.extra.utils :as utils]))
 
 (defn save
   "Save `chart`."
diff --git a/src/cljplot/impl/histogram.clj b/src/cljplot/impl/histogram.clj
index 7b79361..8e284c9 100644
--- a/src/cljplot/impl/histogram.clj
+++ b/src/cljplot/impl/histogram.clj
@@ -1,5 +1,6 @@
 (ns cljplot.impl.histogram
   (:require [cljplot.common :refer :all]
+            [cljplot.scale.bands :as b]
             [cljplot.scale :as s]
             [fastmath.core :as m]
             [fastmath.stats :as stats]
@@ -85,7 +86,7 @@
 (defn- draw-series
   [canvas data {:keys [palette stroke stroke? type padding-in padding-out ^double zero]
                 :or {type :bars}}]
-  (let [bands (s/bands {:padding-out padding-out :padding-in padding-in} (count data))
+  (let [bands (b/bands {:padding-out padding-out :padding-in padding-in} (count data))
         zero (+ zero 3)]
     (doseq [[idx d] (map-indexed vector data)]
       (let [{:keys [^double start ^double end ^double point]} (bands idx)
diff --git a/src/cljplot/impl/math.clj b/src/cljplot/impl/math.clj
index df2f81e..9930d9f 100644
--- a/src/cljplot/impl/math.clj
+++ b/src/cljplot/impl/math.clj
@@ -9,6 +9,7 @@
             [clojure2d.core :refer :all]
             [fastmath.grid :as grid]
             [fastmath.stats :as stats]
+            [cljplot.utils :as u]
             [cljplot.scale :as s])
   (:import [marchingsquares Algorithm]))
 
@@ -133,7 +134,7 @@
                  (f (iscale-x xx) (iscale-y yy)))]
 
     (let [^Algorithm algo (Algorithm. (m/seq->double-double-array (partition (int w) values)))            
-          steps (s/splice-range (inc contours) (.-min algo) (.-max algo))]
+          steps (u/slice-range (inc contours) (.-min algo) (.-max algo))]
       (do-graph chart-data true
         (doseq [[id p] (map-indexed vector (.buildContours algo (double-array steps)))
                 :let [col (nth palette id)]]
diff --git a/src/cljplot/impl/scatter.clj b/src/cljplot/impl/scatter.clj
index 59d931f..61fd037 100644
--- a/src/cljplot/impl/scatter.clj
+++ b/src/cljplot/impl/scatter.clj
@@ -2,6 +2,7 @@
   (:require [clojure2d.core :refer :all]
             [cljplot.common :refer :all]
             [cljplot.scale :as s]
+            [cljplot.utils :as u]
             [fastmath.random :as r]
             [fastmath.protocols :as pr]
             [fastmath.core :as m]
@@ -91,7 +92,7 @@
         (Blur/gaussianBlur g target w h (if (< blur-kernel-size 1.0) (* 0.1 blur-kernel-size (max w h)) blur-kernel-size)))
 
       (let [^Algorithm algo (Algorithm. (m/seq->double-double-array (partition (int w) target)))            
-            steps (rest (s/splice-range (inc contours) (.-min algo) (.-max algo)))]
+            steps (rest (u/slice-range (inc contours) (.-min algo) (.-max algo)))]
         (do-graph chart-data true
                   (doseq [[id p] (map-indexed vector (.buildContours algo (double-array steps)))
                           :let [col (nth palette id)]]
diff --git a/src/cljplot/impl/strips.clj b/src/cljplot/impl/strips.clj
index 445e768..f8b83b1 100644
--- a/src/cljplot/impl/strips.clj
+++ b/src/cljplot/impl/strips.clj
@@ -5,6 +5,7 @@
             [clojure2d.core :refer :all]
             [fastmath.stats :as stats]
             [fastmath.kernel :as k]
+            [cljplot.scale.bands :as b]
             [cljplot.scale :as s]
             [clojure2d.color :as c]
             [fastmath.core :as m]))
@@ -215,7 +216,7 @@
 (defmethod render-graph :bar [_ data {:keys [palette color stroke stroke? padding-in padding-out] :as conf}
                               {:keys [w ^int h x] :as chart-data}]
   (let [cnt (count data)
-        bands (s/bands {:padding-out padding-out :padding-in padding-in} cnt)
+        bands (b/bands {:padding-out padding-out :padding-in padding-in} cnt)
         scale-x (partial (:scale x) 0 w)
         ^double zero (scale-x 0)
         pal (if (seq palette) (cycle palette) (repeat color))
@@ -243,7 +244,7 @@
                                            :or {size 0.3} :as conf}
                                    {:keys [^int w ^int h x] :as chart-data}]
   (let [cnt (count data)
-        bands (s/bands {:padding-out padding-out :padding-in padding-in} cnt)
+        bands (b/bands {:padding-out padding-out :padding-in padding-in} cnt)
         scale-x (partial (:scale x) 0 w)
         ^double zero (scale-x 0)
         pal (if (seq palette) (cycle palette) (repeat color))
@@ -269,7 +270,7 @@
 
 (defmethod render-graph :rbar [_ data {:keys [color stroke stroke? padding] :as conf}
                                {:keys [w ^int h x] :as chart-data}]
-  (let [{:keys [^double start ^double end]} ((s/bands {:padding-out padding} 1) 0)
+  (let [{:keys [^double start ^double end]} ((b/bands {:padding-out padding} 1) 0)
         st (* start h)
         hh (* (- end start) h)
         scale-x (partial (:scale x) 0 w)]
@@ -304,7 +305,7 @@
 
 (defmethod render-graph :sbar [_ {:keys [sum data]} {:keys [method palette stroke stroke? padding] :as conf}
                                {:keys [w ^int h x] :as chart-data}]
-  (let [{:keys [^double start ^double end]} ((s/bands {:padding-out padding} 1) 0)
+  (let [{:keys [^double start ^double end]} ((b/bands {:padding-out padding} 1) 0)
         scale-x (partial (:scale x) 0 w)
         zero (scale-x 0)
         pal (cycle palette)
diff --git a/src/cljplot/render.clj b/src/cljplot/render.clj
index e0a830e..65a6ca7 100644
--- a/src/cljplot/render.clj
+++ b/src/cljplot/render.clj
@@ -1,5 +1,6 @@
 (ns cljplot.render
   (:require [cljplot.scale :as s]
+            [cljplot.scale.bands :as b]
             [cljplot.common :refer :all]
             [cljplot.axis :as ax]
             [clojure2d.core :refer :all]
@@ -63,8 +64,8 @@
         ww (- width l r)
         hh (- height t b)
         bands-conf {:padding-in padding-in :padding-out padding-out}
-        bands-x (bands->positions-size (s/bands cols bands-conf) ww)
-        bands-y-raw (s/bands (reverse (range rows)) bands-conf)
+        bands-x (bands->positions-size (b/bands cols bands-conf) ww)
+        bands-y-raw (b/bands (reverse (range rows)) bands-conf)
         bands-y (bands->positions-size bands-y-raw hh)
         scale-x (:x scales)
         scale-y (:y scales)] 
diff --git a/src/cljplot/scale.clj b/src/cljplot/scale.clj
index d3388da..f52270c 100644
--- a/src/cljplot/scale.clj
+++ b/src/cljplot/scale.clj
@@ -68,13 +68,14 @@
      {:ticks ticks})))
 
 (defn- coerce-format-fn
-  "Find formating funciton."
-  [scale ticks fmt]
-  (cond
-    (string? fmt) (partial (if (= (:type scale) :time) dt/format format) fmt)
-    (fn? fmt) fmt
-    (= (:type scale) :time) (time-format scale ticks)
-    :else str))
+  "Find formatting function."
+  ([scale fmt] (coerce-format-fn scale nil fmt))
+  ([scale ticks fmt]
+   (cond
+     (string? fmt) (partial (if (= (:type scale) :time) dt/format format) fmt)
+     (fn? fmt) fmt
+     (= (:type scale) :time) (time-format scale ticks)
+     :else str)))
 
 (defn scale-map
   "Create scale data from definition"
diff --git a/src/cljplot/scale/discrete.clj b/src/cljplot/scale/discrete.clj
index 9b198d3..fa97d2f 100644
--- a/src/cljplot/scale/discrete.clj
+++ b/src/cljplot/scale/discrete.clj
@@ -74,7 +74,7 @@
                           (linear-search r) {:steps steps}))))
 
 (defn threshold
-  "Returns discrete scale for given steps or evenly spliced domain."
+  "Returns discrete scale for given steps or evenly sliced domain."
   ([] (threshold-from-steps 10))
   ([steps] (if (sequential? steps)
              (threshold steps 10)